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Re: *printf-posix: ISO C 23: Add %b directive for binary output of integ
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From: |
Bruno Haible |
|
Subject: |
Re: *printf-posix: ISO C 23: Add %b directive for binary output of integers |
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Date: |
Wed, 22 Mar 2023 22:13:52 +0100 |
Some details of the %b implementation that I added on 2023-03-17 were incorrect.
This patch fixes them, while adding new unit tests.
2023-03-22 Bruno Haible <bruno@clisp.org>
*printf-posix: Fix implementation of %b directive.
* lib/vasnprintf.c (VASNPRINTF): In the %b directive implementation, fix
the precision handling, and ignore the '0' flag when a width and a
precision are both present.
* tests/test-snprintf-posix.h (test_function): Add test cases for the %x
directive and more test cases for the %b directive.
* tests/test-sprintf-posix.h (test_function): Likewise.
* tests/test-vasnprintf-posix.c (test_function): Likewise.
* tests/test-vasnwprintf-posix.c (test_function): Likewise.
* tests/test-vasprintf-posix.c (test_function): Likewise.
* modules/vasnwprintf-posix-tests (Files): Add m4/musl.m4.
(configure.ac): Invoke gl_MUSL_LIBC.
diff --git a/lib/vasnprintf.c b/lib/vasnprintf.c
index 5cd52b5b6e..248444ca23 100644
--- a/lib/vasnprintf.c
+++ b/lib/vasnprintf.c
@@ -3217,6 +3217,7 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp,
{
arg_type type = a.arg[dp->arg_index].type;
int flags = dp->flags;
+ int has_width;
size_t width;
int has_precision;
size_t precision;
@@ -3229,6 +3230,7 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp,
DCHAR_T *pad_ptr;
DCHAR_T *p;
+ has_width = 0;
width = 0;
if (dp->width_start != dp->width_end)
{
@@ -3256,10 +3258,11 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp,
width = xsum (xtimes (width, 10), *digitp++ - '0');
while (digitp != dp->width_end);
}
+ has_width = 1;
}
has_precision = 0;
- precision = 0;
+ precision = 1;
if (dp->precision_start != dp->precision_end)
{
if (dp->precision_arg_index != ARG_NONE)
@@ -3333,12 +3336,24 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp,
int need_prefix = ((flags & FLAG_ALT) && arg != 0);
p = tmp_end;
- do
+ /* "The result of converting a zero value with a precision
+ of zero is no characters." */
+ if (!(has_precision && precision == 0 && arg == 0))
+ {
+ do
+ {
+ *--p = '0' + (arg & 1);
+ arg = arg >> 1;
+ }
+ while (arg != 0);
+ }
+
+ if (has_precision)
{
- *--p = '0' + (arg & 1);
- arg = arg >> 1;
+ DCHAR_T *digits_start = tmp_end - precision;
+ while (p > digits_start)
+ *--p = '0';
}
- while (arg != 0);
pad_ptr = p;
@@ -3365,7 +3380,12 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp,
for (p = tmp_end - pad; p < tmp_end; p++)
*p = ' ';
}
- else if (flags & FLAG_ZERO)
+ else if ((flags & FLAG_ZERO)
+ /* Neither ISO C nor POSIX specify that the '0'
+ flag is ignored when a width and a precision
+ are both present. But most implementations
+ do so. */
+ && !(has_width && has_precision))
{
/* Pad with zeroes. */
for (p = tmp_start; p < pad_ptr; p++)
diff --git a/modules/vasnwprintf-posix-tests b/modules/vasnwprintf-posix-tests
index 667eb61103..6354e79f75 100644
--- a/modules/vasnwprintf-posix-tests
+++ b/modules/vasnwprintf-posix-tests
@@ -7,6 +7,7 @@ tests/minus-zero.h
tests/infinity.h
tests/nan.h
tests/macros.h
+m4/musl.m4
m4/locale-fr.m4
m4/codeset.m4
@@ -21,6 +22,7 @@ wmemcpy
configure.ac:
AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE])
+gl_MUSL_LIBC
gt_LOCALE_FR
gt_LOCALE_FR_UTF8
diff --git a/tests/test-snprintf-posix.h b/tests/test-snprintf-posix.h
index 05c7be8059..a8993f947a 100644
--- a/tests/test-snprintf-posix.h
+++ b/tests/test-snprintf-posix.h
@@ -3091,6 +3091,190 @@ test_function (int (*my_snprintf) (char *, size_t,
const char *, ...))
}
#endif
+ /* Test the support of the 'x' conversion specifier for hexadecimal output of
+ integers. */
+
+ { /* Zero. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%x %d", 0, 33, 44, 55);
+ ASSERT (strcmp (result, "0 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* A positive number. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* A large positive number. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%x %d", 0xFFFFFFFEU, 33, 44, 55);
+ ASSERT (strcmp (result, "fffffffe 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Width. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, " 303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Width given as argument. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%*x %d", 10, 12348, 33, 44, 55);
+ ASSERT (strcmp (result, " 303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Negative width given as argument (cf. FLAG_LEFT below). */
+ int retval =
+ my_snprintf (result, sizeof (result), "%*x %d", -10, 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%.10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Zero precision and a positive number. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%.0x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Zero precision and a zero number. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%.0x %d", 0, 33, 44, 55);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters." */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Width and precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%15.10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, " 000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Padding and precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%015.10x %d", 12348, 33, 44, 55);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when a
width
+ and a precision are both present. But most implementations do so. */
+ #ifdef __MINGW32__
+ ASSERT (strcmp (result, "00000000000303c 33") == 0);
+ #else
+ ASSERT (strcmp (result, " 000000303c 33") == 0);
+ #endif
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_LEFT. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%-10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with zero. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%#x %d", 0, 33, 44, 55);
+ ASSERT (strcmp (result, "0 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%#x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "0x303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and width. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%#10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, " 0x303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and padding. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%0#10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "0x0000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%0#.10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "0x000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and width and precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%#15.10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, " 0x000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and padding and precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%0#15.10x %d", 12348, 33, 44, 55);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when a
width
+ and a precision are both present. But most implementations do so. */
+ #ifdef __MINGW32__
+ ASSERT (strcmp (result, "0x000000000303c 33") == 0);
+ #else
+ ASSERT (strcmp (result, " 0x000000303c 33") == 0);
+ #endif
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a zero precision and a zero number. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%#.0x %d", 0, 33, 44, 55);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Uppercase 'X'. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%X %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "303C 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Uppercase 'X' with FLAG_ALT. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%#X %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "0X303C 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Uppercase 'X' with FLAG_ALT and zero precision and a zero number. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%#.0X %d", 0, 33, 44, 55);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
/* Test the support of the 'b' conversion specifier for binary output of
integers. */
@@ -3136,6 +3320,45 @@ test_function (int (*my_snprintf) (char *, size_t, const
char *, ...))
ASSERT (retval == strlen (result));
}
+ { /* Precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%.20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, "00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Zero precision and a positive number. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%.0b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, "11000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Zero precision and a zero number. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%.0b %d", 0, 33, 44, 55);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters." */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Width and precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%25.20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, " 00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Padding and precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%025.20b %d", 12345, 33, 44, 55);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+ a width and a precision are both present. But implementations do so.
*/
+ ASSERT (strcmp (result, " 00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
{ /* FLAG_LEFT. */
int retval =
my_snprintf (result, sizeof (result), "%-20b %d", 12345, 33, 44, 55);
@@ -3156,4 +3379,51 @@ test_function (int (*my_snprintf) (char *, size_t, const
char *, ...))
ASSERT (strcmp (result, "0b11000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
+
+ { /* FLAG_ALT with a positive number and width. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%#20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, " 0b11000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and padding. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%0#20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, "0b000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%0#.20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, "0b00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and width and precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%#25.20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, " 0b00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and padding and precision. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%0#25.20b %d", 12345, 33, 44, 55);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+ a width and a precision are both present. But implementations do so.
*/
+ ASSERT (strcmp (result, " 0b00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a zero precision and a zero number. */
+ int retval =
+ my_snprintf (result, sizeof (result), "%#.0b %d", 0, 33, 44, 55);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
}
diff --git a/tests/test-sprintf-posix.h b/tests/test-sprintf-posix.h
index d745a1109b..7f280d3c32 100644
--- a/tests/test-sprintf-posix.h
+++ b/tests/test-sprintf-posix.h
@@ -3069,6 +3069,190 @@ test_function (int (*my_sprintf) (char *, const char *,
...))
}
#endif
+ /* Test the support of the 'x' conversion specifier for hexadecimal output of
+ integers. */
+
+ { /* Zero. */
+ int retval =
+ my_sprintf (result, "%x %d", 0, 33, 44, 55);
+ ASSERT (strcmp (result, "0 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* A positive number. */
+ int retval =
+ my_sprintf (result, "%x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* A large positive number. */
+ int retval =
+ my_sprintf (result, "%x %d", 0xFFFFFFFEU, 33, 44, 55);
+ ASSERT (strcmp (result, "fffffffe 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Width. */
+ int retval =
+ my_sprintf (result, "%10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, " 303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Width given as argument. */
+ int retval =
+ my_sprintf (result, "%*x %d", 10, 12348, 33, 44, 55);
+ ASSERT (strcmp (result, " 303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Negative width given as argument (cf. FLAG_LEFT below). */
+ int retval =
+ my_sprintf (result, "%*x %d", -10, 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Precision. */
+ int retval =
+ my_sprintf (result, "%.10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Zero precision and a positive number. */
+ int retval =
+ my_sprintf (result, "%.0x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Zero precision and a zero number. */
+ int retval =
+ my_sprintf (result, "%.0x %d", 0, 33, 44, 55);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters." */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Width and precision. */
+ int retval =
+ my_sprintf (result, "%15.10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, " 000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Padding and precision. */
+ int retval =
+ my_sprintf (result, "%015.10x %d", 12348, 33, 44, 55);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when a
width
+ and a precision are both present. But most implementations do so. */
+ #ifdef __MINGW32__
+ ASSERT (strcmp (result, "00000000000303c 33") == 0);
+ #else
+ ASSERT (strcmp (result, " 000000303c 33") == 0);
+ #endif
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_LEFT. */
+ int retval =
+ my_sprintf (result, "%-10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with zero. */
+ int retval =
+ my_sprintf (result, "%#x %d", 0, 33, 44, 55);
+ ASSERT (strcmp (result, "0 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number. */
+ int retval =
+ my_sprintf (result, "%#x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "0x303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and width. */
+ int retval =
+ my_sprintf (result, "%#10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, " 0x303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and padding. */
+ int retval =
+ my_sprintf (result, "%0#10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "0x0000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and precision. */
+ int retval =
+ my_sprintf (result, "%0#.10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "0x000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and width and precision. */
+ int retval =
+ my_sprintf (result, "%#15.10x %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, " 0x000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and padding and precision. */
+ int retval =
+ my_sprintf (result, "%0#15.10x %d", 12348, 33, 44, 55);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when a
width
+ and a precision are both present. But most implementations do so. */
+ #ifdef __MINGW32__
+ ASSERT (strcmp (result, "0x000000000303c 33") == 0);
+ #else
+ ASSERT (strcmp (result, " 0x000000303c 33") == 0);
+ #endif
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a zero precision and a zero number. */
+ int retval =
+ my_sprintf (result, "%#.0x %d", 0, 33, 44, 55);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Uppercase 'X'. */
+ int retval =
+ my_sprintf (result, "%X %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "303C 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Uppercase 'X' with FLAG_ALT. */
+ int retval =
+ my_sprintf (result, "%#X %d", 12348, 33, 44, 55);
+ ASSERT (strcmp (result, "0X303C 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Uppercase 'X' with FLAG_ALT and zero precision and a zero number. */
+ int retval =
+ my_sprintf (result, "%#.0X %d", 0, 33, 44, 55);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
/* Test the support of the 'b' conversion specifier for binary output of
integers. */
@@ -3114,6 +3298,45 @@ test_function (int (*my_sprintf) (char *, const char *,
...))
ASSERT (retval == strlen (result));
}
+ { /* Precision. */
+ int retval =
+ my_sprintf (result, "%.20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, "00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Zero precision and a positive number. */
+ int retval =
+ my_sprintf (result, "%.0b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, "11000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Zero precision and a zero number. */
+ int retval =
+ my_sprintf (result, "%.0b %d", 0, 33, 44, 55);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters." */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Width and precision. */
+ int retval =
+ my_sprintf (result, "%25.20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, " 00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* Padding and precision. */
+ int retval =
+ my_sprintf (result, "%025.20b %d", 12345, 33, 44, 55);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+ a width and a precision are both present. But implementations do so.
*/
+ ASSERT (strcmp (result, " 00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
{ /* FLAG_LEFT. */
int retval =
my_sprintf (result, "%-20b %d", 12345, 33, 44, 55);
@@ -3134,4 +3357,51 @@ test_function (int (*my_sprintf) (char *, const char *,
...))
ASSERT (strcmp (result, "0b11000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
+
+ { /* FLAG_ALT with a positive number and width. */
+ int retval =
+ my_sprintf (result, "%#20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, " 0b11000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and padding. */
+ int retval =
+ my_sprintf (result, "%0#20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, "0b000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and precision. */
+ int retval =
+ my_sprintf (result, "%0#.20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, "0b00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and width and precision. */
+ int retval =
+ my_sprintf (result, "%#25.20b %d", 12345, 33, 44, 55);
+ ASSERT (strcmp (result, " 0b00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a positive number and padding and precision. */
+ int retval =
+ my_sprintf (result, "%0#25.20b %d", 12345, 33, 44, 55);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+ a width and a precision are both present. But implementations do so.
*/
+ ASSERT (strcmp (result, " 0b00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
+
+ { /* FLAG_ALT with a zero precision and a zero number. */
+ int retval =
+ my_sprintf (result, "%#.0b %d", 0, 33, 44, 55);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ }
}
diff --git a/tests/test-vasnprintf-posix.c b/tests/test-vasnprintf-posix.c
index ecbb8bcda0..87f4fc290b 100644
--- a/tests/test-vasnprintf-posix.c
+++ b/tests/test-vasnprintf-posix.c
@@ -4017,6 +4017,259 @@ test_function (char * (*my_asnprintf) (char *, size_t
*, const char *, ...))
}
#endif
+ /* Test the support of the 'x' conversion specifier for hexadecimal output of
+ integers. */
+
+ { /* Zero. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* A positive number. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* A large positive number. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%x %d", 0xFFFFFFFEU, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "fffffffe 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Width. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Width given as argument. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%*x %d", 10, 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Negative width given as argument (cf. FLAG_LEFT below). */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%*x %d", -10, 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "000000303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a positive number. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%.0x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a zero number. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%.0x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters." */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Width and precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%15.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 000000303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Padding and precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%015.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when a
width
+ and a precision are both present. But most implementations do so. */
+ #ifdef __MINGW32__
+ ASSERT (strcmp (result, "00000000000303c 33") == 0);
+ #else
+ ASSERT (strcmp (result, " 000000303c 33") == 0);
+ #endif
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_LEFT. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%-10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with zero. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%#x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%#x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0x303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and width. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%#10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 0x303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%0#10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0x0000303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%0#.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0x000000303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and width and precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%#15.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 0x000000303c 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding and precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%0#15.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when a
width
+ and a precision are both present. But most implementations do so. */
+ #ifdef __MINGW32__
+ ASSERT (strcmp (result, "0x000000000303c 33") == 0);
+ #else
+ ASSERT (strcmp (result, " 0x000000303c 33") == 0);
+ #endif
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a zero precision and a zero number. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%#.0x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Uppercase 'X'. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%X %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "303C 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Uppercase 'X' with FLAG_ALT. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%#X %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0X303C 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Uppercase 'X' with FLAG_ALT and zero precision and a zero number. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%#.0X %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
/* Test the support of the 'b' conversion specifier for binary output of
integers. */
@@ -4080,6 +4333,60 @@ test_function (char * (*my_asnprintf) (char *, size_t *,
const char *, ...))
free (result);
}
+ { /* Precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "00000011000000111001 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a positive number. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%.0b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "11000000111001 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a zero number. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%.0b %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters." */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Width and precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%25.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 00000011000000111001 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* Padding and precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%025.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+ a width and a precision are both present. But implementations do so.
*/
+ ASSERT (strcmp (result, " 00000011000000111001 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
{ /* FLAG_LEFT. */
size_t length;
char *result =
@@ -4094,6 +4401,7 @@ test_function (char * (*my_asnprintf) (char *, size_t *,
const char *, ...))
size_t length;
char *result =
my_asnprintf (NULL, &length, "%#b %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
ASSERT (strcmp (result, "0 33") == 0);
ASSERT (length == strlen (result));
free (result);
@@ -4103,11 +4411,77 @@ test_function (char * (*my_asnprintf) (char *, size_t
*, const char *, ...))
size_t length;
char *result =
my_asnprintf (NULL, &length, "%#b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
ASSERT (strcmp (result, "0b11000000111001 33") == 0);
ASSERT (length == strlen (result));
free (result);
}
+ { /* FLAG_ALT with a positive number and width. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%#20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 0b11000000111001 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%0#20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0b000011000000111001 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%0#.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0b00000011000000111001 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and width and precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%#25.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 0b00000011000000111001 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding and precision. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%0#25.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+ a width and a precision are both present. But implementations do so.
*/
+ ASSERT (strcmp (result, " 0b00000011000000111001 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a zero precision and a zero number. */
+ size_t length;
+ char *result =
+ my_asnprintf (NULL, &length, "%#.0b %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (length == strlen (result));
+ free (result);
+ }
+
#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)) && !defined
__UCLIBC__
/* Test that the 'I' flag is supported. */
{
diff --git a/tests/test-vasnwprintf-posix.c b/tests/test-vasnwprintf-posix.c
index e53c6a33f3..49f5f91ebe 100644
--- a/tests/test-vasnwprintf-posix.c
+++ b/tests/test-vasnwprintf-posix.c
@@ -4022,6 +4022,259 @@ test_function (wchar_t * (*my_asnwprintf) (wchar_t *,
size_t *, const wchar_t *,
}
#endif
+ /* Test the support of the 'x' conversion specifier for hexadecimal output of
+ integers. */
+
+ { /* Zero. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"0 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* A positive number. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* A large positive number. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%x %d", 0xFFFFFFFEU, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"fffffffe 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Width. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L" 303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Width given as argument. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%*x %d", 10, 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L" 303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Negative width given as argument (cf. FLAG_LEFT below). */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%*x %d", -10, 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"000000303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a positive number. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%.0x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a zero number. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%.0x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters." */
+ ASSERT (wcscmp (result, L" 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Width and precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%15.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L" 000000303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Padding and precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%015.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when a
width
+ and a precision are both present. But most implementations do so. */
+ #if MUSL_LIBC || defined __MINGW32__
+ ASSERT (wcscmp (result, L"00000000000303c 33") == 0);
+ #else
+ ASSERT (wcscmp (result, L" 000000303c 33") == 0);
+ #endif
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_LEFT. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%-10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with zero. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%#x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"0 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%#x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"0x303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and width. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%#10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L" 0x303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%0#10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"0x0000303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%0#.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"0x000000303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and width and precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%#15.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L" 0x000000303c 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding and precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%0#15.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when a
width
+ and a precision are both present. But most implementations do so. */
+ #if MUSL_LIBC || defined __MINGW32__
+ ASSERT (wcscmp (result, L"0x000000000303c 33") == 0);
+ #else
+ ASSERT (wcscmp (result, L" 0x000000303c 33") == 0);
+ #endif
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a zero precision and a zero number. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%#.0x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (wcscmp (result, L" 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Uppercase 'X'. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%X %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"303C 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Uppercase 'X' with FLAG_ALT. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%#X %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"0X303C 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Uppercase 'X' with FLAG_ALT and zero precision and a zero number. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%#.0X %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (wcscmp (result, L" 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
/* Test the support of the 'b' conversion specifier for binary output of
integers. */
@@ -4085,6 +4338,60 @@ test_function (wchar_t * (*my_asnwprintf) (wchar_t *,
size_t *, const wchar_t *,
free (result);
}
+ { /* Precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"00000011000000111001 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a positive number. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%.0b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"11000000111001 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a zero number. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%.0b %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters." */
+ ASSERT (wcscmp (result, L" 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Width and precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%25.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L" 00000011000000111001 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* Padding and precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%025.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+ a width and a precision are both present. But implementations do so.
*/
+ ASSERT (wcscmp (result, L" 00000011000000111001 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
{ /* FLAG_LEFT. */
size_t length;
wchar_t *result =
@@ -4099,6 +4406,7 @@ test_function (wchar_t * (*my_asnwprintf) (wchar_t *,
size_t *, const wchar_t *,
size_t length;
wchar_t *result =
my_asnwprintf (NULL, &length, L"%#b %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
ASSERT (wcscmp (result, L"0 33") == 0);
ASSERT (length == wcslen (result));
free (result);
@@ -4108,11 +4416,77 @@ test_function (wchar_t * (*my_asnwprintf) (wchar_t *,
size_t *, const wchar_t *,
size_t length;
wchar_t *result =
my_asnwprintf (NULL, &length, L"%#b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
ASSERT (wcscmp (result, L"0b11000000111001 33") == 0);
ASSERT (length == wcslen (result));
free (result);
}
+ { /* FLAG_ALT with a positive number and width. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%#20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L" 0b11000000111001 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%0#20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"0b000011000000111001 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%0#.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L"0b00000011000000111001 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and width and precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%#25.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (wcscmp (result, L" 0b00000011000000111001 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding and precision. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%0#25.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+ a width and a precision are both present. But implementations do so.
*/
+ ASSERT (wcscmp (result, L" 0b00000011000000111001 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a zero precision and a zero number. */
+ size_t length;
+ wchar_t *result =
+ my_asnwprintf (NULL, &length, L"%#.0b %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (wcscmp (result, L" 33") == 0);
+ ASSERT (length == wcslen (result));
+ free (result);
+ }
+
#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)) && !defined
__UCLIBC__
/* Test that the 'I' flag is supported. */
{
diff --git a/tests/test-vasprintf-posix.c b/tests/test-vasprintf-posix.c
index 46086ef251..0da0c7441b 100644
--- a/tests/test-vasprintf-posix.c
+++ b/tests/test-vasprintf-posix.c
@@ -3956,6 +3956,259 @@ test_function (int (*my_asprintf) (char **, const char
*, ...))
}
#endif
+ /* Test the support of the 'x' conversion specifier for hexadecimal output of
+ integers. */
+
+ { /* Zero. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* A positive number. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* A large positive number. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%x %d", 0xFFFFFFFEU, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "fffffffe 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Width. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Width given as argument. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%*x %d", 10, 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Negative width given as argument (cf. FLAG_LEFT below). */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%*x %d", -10, 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a positive number. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%.0x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a zero number. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%.0x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters." */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Width and precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%15.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Padding and precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%015.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when a
width
+ and a precision are both present. But most implementations do so. */
+ #ifdef __MINGW32__
+ ASSERT (strcmp (result, "00000000000303c 33") == 0);
+ #else
+ ASSERT (strcmp (result, " 000000303c 33") == 0);
+ #endif
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_LEFT. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%-10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with zero. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%#x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%#x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0x303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and width. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%#10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 0x303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%0#10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0x0000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%0#.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0x000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and width and precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%#15.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 0x000000303c 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding and precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%0#15.10x %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when a
width
+ and a precision are both present. But most implementations do so. */
+ #ifdef __MINGW32__
+ ASSERT (strcmp (result, "0x000000000303c 33") == 0);
+ #else
+ ASSERT (strcmp (result, " 0x000000303c 33") == 0);
+ #endif
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a zero precision and a zero number. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%#.0x %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Uppercase 'X'. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%X %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "303C 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Uppercase 'X' with FLAG_ALT. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%#X %d", 12348, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0X303C 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Uppercase 'X' with FLAG_ALT and zero precision and a zero number. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%#.0X %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
/* Test the support of the 'b' conversion specifier for binary output of
integers. */
@@ -4019,6 +4272,60 @@ test_function (int (*my_asprintf) (char **, const char
*, ...))
free (result);
}
+ { /* Precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a positive number. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%.0b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "11000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Zero precision and a zero number. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%.0b %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters." */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Width and precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%25.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* Padding and precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%025.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+ a width and a precision are both present. But implementations do so.
*/
+ ASSERT (strcmp (result, " 00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
{ /* FLAG_LEFT. */
char *result;
int retval =
@@ -4033,6 +4340,7 @@ test_function (int (*my_asprintf) (char **, const char *,
...))
char *result;
int retval =
my_asprintf (&result, "%#b %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
ASSERT (strcmp (result, "0 33") == 0);
ASSERT (retval == strlen (result));
free (result);
@@ -4042,10 +4350,76 @@ test_function (int (*my_asprintf) (char **, const char
*, ...))
char *result;
int retval =
my_asprintf (&result, "%#b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
ASSERT (strcmp (result, "0b11000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
+
+ { /* FLAG_ALT with a positive number and width. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%#20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 0b11000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%0#20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0b000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%0#.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, "0b00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and width and precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%#25.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ ASSERT (strcmp (result, " 0b00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a positive number and padding and precision. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%0#25.20b %d", 12345, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+ a width and a precision are both present. But implementations do so.
*/
+ ASSERT (strcmp (result, " 0b00000011000000111001 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
+
+ { /* FLAG_ALT with a zero precision and a zero number. */
+ char *result;
+ int retval =
+ my_asprintf (&result, "%#.0b %d", 0, 33, 44, 55);
+ ASSERT (result != NULL);
+ /* ISO C and POSIX specify that "The result of converting a zero value
+ with a precision of zero is no characters.", and the prefix is added
+ only for non-zero values. */
+ ASSERT (strcmp (result, " 33") == 0);
+ ASSERT (retval == strlen (result));
+ free (result);
+ }
}
static int
- *printf-posix: ISO C 23: Add %b directive for binary output of integers, Bruno Haible, 2023/03/17
- Re: *printf-posix: ISO C 23: Add %b directive for binary output of integers, Pádraig Brady, 2023/03/18
- Re: *printf-posix: ISO C 23: Add %b directive for binary output of integers, Eric Blake, 2023/03/18
- new modules *printf-gnu, Bruno Haible, 2023/03/24
- Re: new modules *printf-gnu, Eric Blake, 2023/03/24
- Re: new modules *printf-gnu, Bruno Haible, 2023/03/24
- Re: new modules *printf-gnu, Paul Eggert, 2023/03/24
- Re: new modules *printf-gnu, Bruno Haible, 2023/03/24
Re: *printf-posix: ISO C 23: Add %b directive for binary output of integers,
Bruno Haible <=