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Re: proposed new module intprops-test
|
From: |
Paul Eggert |
|
Subject: |
Re: proposed new module intprops-test |
|
Date: |
Thu, 19 May 2011 19:28:45 -0700 |
|
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.17) Gecko/20110424 Thunderbird/3.1.10 |
On 05/19/11 06:07, Bruno Haible wrote:
> Thanks, this patch fixed the errors on OSF/1 5.1 and reduced the errors on
> Solaris 9 to only one:...
Yes, thanks, I've committed something which I hope fixes that;
see below.
> This part of the patch has no effect on HP-UX, IRIX, and neither on
> OSF/1 and Solaris where the test already compiles fine. You could just as
> well revert it.
OK, done.
> Analysis of the HP-UX cc bug:...
> So I think, you will have to use ASSERT here instead of verify.
Thanks, done.
> Analysis of the IRIX cc bug:
> So here apparently the problem is adding an unsigned value and -1.
> The following change fixes this error for me:
>
> #define _GL_INT_SIGNED(e) (_GL_INT_CONVERT (e, -1) < 0)
> #undef _GL_INT_SIGNED
> #define _GL_INT_SIGNED(e) ((e) - (e) - 1 < 0)
OK, thanks, I committed something a bit more general.
> Other errors still remain; to be investigated in the next round.
Thanks for all that checking! Here's what I committed:
>From 55abd3179923a7ec9cde845b8c37fc678c31dd5c Mon Sep 17 00:00:00 2001
From: Paul Eggert <address@hidden>
Date: Thu, 19 May 2011 19:15:19 -0700
Subject: [PATCH 1/3] intprops-tests: revert unsigned part of previous change
* tests/test-intprops.c (UINT_MAX, ULONG_MAX, UINTMAX_MAX, U0, U1):
Remove; they weren't actually needed. All uses of U0 and U1 removed,
and other casts to 'unsigned int' reverted to 'u' suffixes. See
<http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html>.
---
ChangeLog | 8 ++++
tests/test-intprops.c | 102 +++++++++++++++++++++---------------------------
2 files changed, 53 insertions(+), 57 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index e9da004..5065b4b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2011-05-19 Paul Eggert <address@hidden>
+
+ intprops-tests: revert unsigned part of previous change
+ * tests/test-intprops.c (UINT_MAX, ULONG_MAX, UINTMAX_MAX, U0, U1):
+ Remove; they weren't actually needed. All uses of U0 and U1 removed,
+ and other casts to 'unsigned int' reverted to 'u' suffixes. See
+ <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html>.
+
2011-05-19 Bruno Haible <address@hidden>
strerror_r: Work around strerror_r() change in Cygwin 1.7.8.
diff --git a/tests/test-intprops.c b/tests/test-intprops.c
index 9c2fe07..eec35dd 100644
--- a/tests/test-intprops.c
+++ b/tests/test-intprops.c
@@ -26,18 +26,6 @@
#include "macros.h"
-/* Work around compiler bugs in HP-UX 11.23 cc, IRIX 6.5 cc, OSF/1 5.1
- cc, and Solaris 9 cc. See
- <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>. */
-#undef UINT_MAX
-#undef ULONG_MAX
-#undef UINTMAX_MAX
-#define UINT_MAX ((unsigned int) -1)
-#define ULONG_MAX ((unsigned long int) -1)
-#define UINTMAX_MAX ((uintmax_t) -1)
-#define U0 ((unsigned int) 0)
-#define U1 ((unsigned int) 1)
-
/* Integer representation. */
verify (INT_MIN + INT_MAX < 0
? (TYPE_TWOS_COMPLEMENT (int)
@@ -112,23 +100,23 @@ verify (check_binop (ADD, INT_MAX, 1, INT_MIN, INT_MAX,
true));
verify (check_binop (ADD, INT_MAX, -1, INT_MIN, INT_MAX, false));
verify (check_binop (ADD, INT_MIN, 1, INT_MIN, INT_MAX, false));
verify (check_binop (ADD, INT_MIN, -1, INT_MIN, INT_MAX, true));
-verify (check_binop (ADD, UINT_MAX, U1, U0, UINT_MAX, true));
-verify (check_binop (ADD, U0, U1, U0, UINT_MAX, false));
+verify (check_binop (ADD, UINT_MAX, 1u, 0u, UINT_MAX, true));
+verify (check_binop (ADD, 0u, 1u, 0u, UINT_MAX, false));
verify (check_binop (SUBTRACT, INT_MAX, 1, INT_MIN, INT_MAX, false));
verify (check_binop (SUBTRACT, INT_MAX, -1, INT_MIN, INT_MAX, true));
verify (check_binop (SUBTRACT, INT_MIN, 1, INT_MIN, INT_MAX, true));
verify (check_binop (SUBTRACT, INT_MIN, -1, INT_MIN, INT_MAX, false));
-verify (check_binop (SUBTRACT, UINT_MAX, U1, U0, UINT_MAX, false));
-verify (check_binop (SUBTRACT, U0, U1, U0, UINT_MAX, true));
+verify (check_binop (SUBTRACT, UINT_MAX, 1u, 0u, UINT_MAX, false));
+verify (check_binop (SUBTRACT, 0u, 1u, 0u, UINT_MAX, true));
verify (check_unop (NEGATE, INT_MIN, INT_MIN, INT_MAX,
TYPE_TWOS_COMPLEMENT (int)));
verify (check_unop (NEGATE, 0, INT_MIN, INT_MAX, false));
verify (check_unop (NEGATE, INT_MAX, INT_MIN, INT_MAX, false));
-verify (check_unop (NEGATE, U0, U0, UINT_MAX, false));
-verify (check_unop (NEGATE, U1, U0, UINT_MAX, true));
-verify (check_unop (NEGATE, UINT_MAX, U0, UINT_MAX, true));
+verify (check_unop (NEGATE, 0u, 0u, UINT_MAX, false));
+verify (check_unop (NEGATE, 1u, 0u, UINT_MAX, true));
+verify (check_unop (NEGATE, UINT_MAX, 0u, UINT_MAX, true));
verify (check_binop (MULTIPLY, INT_MAX, INT_MAX, INT_MIN, INT_MAX, true));
verify (check_binop (MULTIPLY, INT_MAX, INT_MIN, INT_MIN, INT_MAX, true));
@@ -143,17 +131,17 @@ verify (check_binop (DIVIDE, INT_MIN, -1, INT_MIN,
INT_MAX,
INT_NEGATE_OVERFLOW (INT_MIN)));
verify (check_binop (DIVIDE, INT_MAX, 1, INT_MIN, INT_MAX, false));
verify (check_binop (DIVIDE, (unsigned int) INT_MIN,
- -U1, U0, UINT_MAX, false));
+ -1u, 0u, UINT_MAX, false));
verify (check_binop (REMAINDER, INT_MIN, -1, INT_MIN, INT_MAX,
INT_NEGATE_OVERFLOW (INT_MIN)));
verify (check_binop (REMAINDER, INT_MAX, 1, INT_MIN, INT_MAX, false));
verify (check_binop (REMAINDER, (unsigned int) INT_MIN,
- -U1, U0, UINT_MAX, false));
+ -1u, 0u, UINT_MAX, false));
-verify (check_binop (LEFT_SHIFT, UINT_MAX, 1, U0, UINT_MAX, true));
-verify (check_binop (LEFT_SHIFT, UINT_MAX / 2 + 1, 1, U0, UINT_MAX, true));
-verify (check_binop (LEFT_SHIFT, UINT_MAX / 2, 1, U0, UINT_MAX, false));
+verify (check_binop (LEFT_SHIFT, UINT_MAX, 1, 0u, UINT_MAX, true));
+verify (check_binop (LEFT_SHIFT, UINT_MAX / 2 + 1, 1, 0u, UINT_MAX, true));
+verify (check_binop (LEFT_SHIFT, UINT_MAX / 2, 1, 0u, UINT_MAX, false));
/* INT_<op>_OVERFLOW with mixed types. */
#define check_sum(a, b, overflow) \
@@ -161,51 +149,51 @@ verify (check_binop (LEFT_SHIFT, UINT_MAX / 2, 1, U0,
UINT_MAX, false));
verify (INT_ADD_OVERFLOW (b, a) == (overflow))
check_sum (-1, LONG_MIN, true);
check_sum (-1, UINT_MAX, false);
-check_sum (- (long) 1, INT_MIN, INT_MIN == LONG_MIN);
-check_sum (U0, -1, true);
-check_sum (U0, 0, false);
-check_sum (U0, 1, false);
+check_sum (-1L, INT_MIN, INT_MIN == LONG_MIN);
+check_sum (0u, -1, true);
+check_sum (0u, 0, false);
+check_sum (0u, 1, false);
check_sum (1, LONG_MAX, true);
check_sum (1, UINT_MAX, true);
-check_sum ((long) 1, INT_MAX, INT_MAX == LONG_MAX);
-check_sum (U1, INT_MAX, INT_MAX == UINT_MAX);
-check_sum (U1, INT_MIN, true);
+check_sum (1L, INT_MAX, INT_MAX == LONG_MAX);
+check_sum (1u, INT_MAX, INT_MAX == UINT_MAX);
+check_sum (1u, INT_MIN, true);
-verify (! INT_SUBTRACT_OVERFLOW (INT_MAX, U1));
+verify (! INT_SUBTRACT_OVERFLOW (INT_MAX, 1u));
verify (! INT_SUBTRACT_OVERFLOW (UINT_MAX, 1));
-verify (! INT_SUBTRACT_OVERFLOW (U0, -1));
+verify (! INT_SUBTRACT_OVERFLOW (0u, -1));
verify (INT_SUBTRACT_OVERFLOW (UINT_MAX, -1));
-verify (INT_SUBTRACT_OVERFLOW (INT_MIN, U1));
-verify (INT_SUBTRACT_OVERFLOW (-1, U0));
+verify (INT_SUBTRACT_OVERFLOW (INT_MIN, 1u));
+verify (INT_SUBTRACT_OVERFLOW (-1, 0u));
#define check_product(a, b, overflow) \
verify (INT_MULTIPLY_OVERFLOW (a, b) == (overflow)); \
verify (INT_MULTIPLY_OVERFLOW (b, a) == (overflow))
-check_product (-1, U1, true);
+check_product (-1, 1u, true);
check_product (-1, INT_MIN, INT_NEGATE_OVERFLOW (INT_MIN));
check_product (-1, UINT_MAX, true);
check_product (-12345, LONG_MAX / -12345 - 1, true);
check_product (-12345, LONG_MAX / -12345, false);
check_product (0, -1, false);
check_product (0, 0, false);
-check_product (0, U0, false);
+check_product (0, 0u, false);
check_product (0, 1, false);
check_product (0, INT_MAX, false);
check_product (0, INT_MIN, false);
check_product (0, UINT_MAX, false);
-check_product (U0, -1, false);
-check_product (U0, 0, false);
-check_product (U0, U0, false);
-check_product (U0, 1, false);
-check_product (U0, INT_MAX, false);
-check_product (U0, INT_MIN, false);
-check_product (U0, UINT_MAX, false);
+check_product (0u, -1, false);
+check_product (0u, 0, false);
+check_product (0u, 0u, false);
+check_product (0u, 1, false);
+check_product (0u, INT_MAX, false);
+check_product (0u, INT_MIN, false);
+check_product (0u, UINT_MAX, false);
check_product (1, INT_MAX, false);
check_product (1, INT_MIN, false);
check_product (1, UINT_MAX, false);
-check_product (U1, INT_MIN, true);
-check_product (U1, INT_MAX, UINT_MAX < INT_MAX);
+check_product (1u, INT_MIN, true);
+check_product (1u, INT_MAX, UINT_MAX < INT_MAX);
check_product (INT_MAX, UINT_MAX, true);
check_product (INT_MAX, ULONG_MAX, true);
check_product (INT_MIN, LONG_MAX / INT_MIN - 1, true);
@@ -213,19 +201,19 @@ check_product (INT_MIN, LONG_MAX / INT_MIN, false);
check_product (INT_MIN, UINT_MAX, true);
check_product (INT_MIN, ULONG_MAX, true);
-verify (INT_DIVIDE_OVERFLOW (INT_MIN, - (long) 1)
+verify (INT_DIVIDE_OVERFLOW (INT_MIN, -1L)
== (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN));
verify (! INT_DIVIDE_OVERFLOW (INT_MIN, UINT_MAX));
verify (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINTMAX_MAX));
verify (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINT_MAX));
-verify (INT_DIVIDE_OVERFLOW (-11, (unsigned int) 10));
-verify (INT_DIVIDE_OVERFLOW (-10, (unsigned int) 10));
-verify (! INT_DIVIDE_OVERFLOW (-9, (unsigned int) 10));
-verify (INT_DIVIDE_OVERFLOW ((unsigned int) 11, -10));
-verify (INT_DIVIDE_OVERFLOW ((unsigned int) 10, -10));
+verify (INT_DIVIDE_OVERFLOW (-11, 10u));
+verify (INT_DIVIDE_OVERFLOW (-10, 10u));
+verify (! INT_DIVIDE_OVERFLOW (-9, 10u));
+verify (INT_DIVIDE_OVERFLOW (11u, -10));
+verify (INT_DIVIDE_OVERFLOW (10u, -10));
verify (! INT_DIVIDE_OVERFLOW (9u, -10));
-verify (INT_REMAINDER_OVERFLOW (INT_MIN, - (long) 1)
+verify (INT_REMAINDER_OVERFLOW (INT_MIN, -1L)
== (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN));
verify (INT_REMAINDER_OVERFLOW (-1, UINT_MAX));
verify (INT_REMAINDER_OVERFLOW ((intmax_t) -1, UINTMAX_MAX));
@@ -234,10 +222,10 @@ verify (INT_REMAINDER_OVERFLOW (INTMAX_MIN, UINT_MAX)
&& - (unsigned int) INTMAX_MIN % UINT_MAX != 0));
verify (INT_REMAINDER_OVERFLOW (INT_MIN, ULONG_MAX)
== (INT_MIN % ULONG_MAX != 1));
-verify (! INT_REMAINDER_OVERFLOW (U1, -1));
-verify (! INT_REMAINDER_OVERFLOW (37 * (unsigned int) 39, -39));
-verify (INT_REMAINDER_OVERFLOW (37 * (unsigned int) 39 + 1, -39));
-verify (INT_REMAINDER_OVERFLOW (37 * (unsigned int) 39 - 1, -39));
+verify (! INT_REMAINDER_OVERFLOW (1u, -1));
+verify (! INT_REMAINDER_OVERFLOW (37*39u, -39));
+verify (INT_REMAINDER_OVERFLOW (37*39u + 1, -39));
+verify (INT_REMAINDER_OVERFLOW (37*39u - 1, -39));
verify (! INT_REMAINDER_OVERFLOW (LONG_MAX, -INT_MAX));
int
--
1.7.5.1
>From 92c71a1c8324e3f0776fd0edb3fc400b4d04a592 Mon Sep 17 00:00:00 2001
From: Paul Eggert <address@hidden>
Date: Thu, 19 May 2011 19:16:04 -0700
Subject: [PATCH 2/3] intprops: work around IRIX 6.5 cc bug with 0u - 0u + -1
See http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html
* lib/intprops.h (_GL_INT_NEGATE_CONVERT): New macro.
(_GL_INT_SIGNED, _GL_INT_MAXIMUM, _GL_DIVIDE_OVERFLOW):
(_GL_REMAINDER_OVERFLOW): Use it.
---
ChangeLog | 6 ++++++
lib/intprops.h | 12 ++++++++----
2 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 5065b4b..75f9b1d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
2011-05-19 Paul Eggert <address@hidden>
+ intprops: work around IRIX 6.5 cc bug with 0u - 0u + -1
+ See http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html
+ * lib/intprops.h (_GL_INT_NEGATE_CONVERT): New macro.
+ (_GL_INT_SIGNED, _GL_INT_MAXIMUM, _GL_DIVIDE_OVERFLOW):
+ (_GL_REMAINDER_OVERFLOW): Use it.
+
intprops-tests: revert unsigned part of previous change
* tests/test-intprops.c (UINT_MAX, ULONG_MAX, UINTMAX_MAX, U0, U1):
Remove; they weren't actually needed. All uses of U0 and U1 removed,
diff --git a/lib/intprops.h b/lib/intprops.h
index 9107a4b..bd9f040 100644
--- a/lib/intprops.h
+++ b/lib/intprops.h
@@ -27,6 +27,10 @@
E should not have side effects. */
#define _GL_INT_CONVERT(e, v) ((e) - (e) + (v))
+/* Act like _GL_INT_CONVERT (E, -V) but work around a bug in IRIX 6.5 cc; see
+ <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html>. */
+#define _GL_INT_NEGATE_CONVERT(e, v) ((e) - (e) - (v))
+
/* The extra casts in the following macros work around compiler bugs,
e.g., in Cray C 5.0.3.0. */
@@ -50,7 +54,7 @@
/* Return 1 if the integer expression E, after integer promotion, has
a signed type. E should not have side effects. */
-#define _GL_INT_SIGNED(e) (_GL_INT_CONVERT (e, -1) < 0)
+#define _GL_INT_SIGNED(e) (_GL_INT_NEGATE_CONVERT (e, 1) < 0)
/* Minimum and maximum values for integer types and expressions. These
@@ -79,7 +83,7 @@
#define _GL_INT_MAXIMUM(e) \
(_GL_INT_SIGNED (e) \
? _GL_SIGNED_INT_MAXIMUM (e) \
- : _GL_INT_CONVERT (e, -1))
+ : _GL_INT_NEGATE_CONVERT (e, 1))
#define _GL_SIGNED_INT_MAXIMUM(e) \
(((_GL_INT_CONVERT (e, 1) << (sizeof ((e) + 0) * CHAR_BIT - 2)) - 1) * 2 + 1)
@@ -239,11 +243,11 @@
(((min) == 0 && (((a) < 0 && 0 < (b)) || ((b) < 0 && 0 < (a)))) \
|| INT_MULTIPLY_RANGE_OVERFLOW (a, b, min, max))
#define _GL_DIVIDE_OVERFLOW(a, b, min, max) \
- ((min) < 0 ? (b) == _GL_INT_CONVERT (min, -1) && (a) < - (max) \
+ ((min) < 0 ? (b) == _GL_INT_NEGATE_CONVERT (min, 1) && (a) < - (max) \
: (a) < 0 ? (b) <= (a) + (b) - 1 \
: (b) < 0 && (a) + (b) <= (a))
#define _GL_REMAINDER_OVERFLOW(a, b, min, max) \
- ((min) < 0 ? (b) == _GL_INT_CONVERT (min, -1) && (a) < - (max) \
+ ((min) < 0 ? (b) == _GL_INT_NEGATE_CONVERT (min, 1) && (a) < - (max) \
: (a) < 0 ? (a) % (b) != ((max) - (b) + 1) % (b) \
: (b) < 0 && ! _GL_UNSIGNED_NEG_MULTIPLE (a, b, max))
--
1.7.5.1
>From 1e0b92c990dfeb136cda606e2914e2d87b00bd74 Mon Sep 17 00:00:00 2001
From: Paul Eggert <address@hidden>
Date: Thu, 19 May 2011 19:16:43 -0700
Subject: [PATCH 3/3] intprops-tests: work around HP-UX 11.23 cc bug with
constants
* tests/test-intprops.c (VERIFY): New macro.
(main): Use it, instead of verify, to work around the compiler bug; see
<http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>.
---
ChangeLog | 5 +
tests/test-intprops.c | 412 +++++++++++++++++++++++++------------------------
2 files changed, 216 insertions(+), 201 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 75f9b1d..95af3d4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
2011-05-19 Paul Eggert <address@hidden>
+ intprops-tests: work around HP-UX 11.23 cc bug with constants
+ * tests/test-intprops.c (VERIFY): New macro.
+ (main): Use it, instead of verify, to work around the compiler bug; see
+ <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>.
+
intprops: work around IRIX 6.5 cc bug with 0u - 0u + -1
See http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html
* lib/intprops.h (_GL_INT_NEGATE_CONVERT): New macro.
diff --git a/tests/test-intprops.c b/tests/test-intprops.c
index eec35dd..8fc582b 100644
--- a/tests/test-intprops.c
+++ b/tests/test-intprops.c
@@ -26,212 +26,22 @@
#include "macros.h"
-/* Integer representation. */
-verify (INT_MIN + INT_MAX < 0
- ? (TYPE_TWOS_COMPLEMENT (int)
- && ! TYPE_ONES_COMPLEMENT (int) && ! TYPE_SIGNED_MAGNITUDE (int))
- : (! TYPE_TWOS_COMPLEMENT (int)
- && (TYPE_ONES_COMPLEMENT (int) || TYPE_SIGNED_MAGNITUDE (int))));
-
-/* TYPE_SIGNED. */
-/* verify (! TYPE_SIGNED (bool)); */ /* not guaranteed by gnulib substitute */
-verify (TYPE_SIGNED (signed char));
-verify (! TYPE_SIGNED (unsigned char));
-verify (TYPE_SIGNED (short int));
-verify (! TYPE_SIGNED (unsigned short int));
-verify (TYPE_SIGNED (int));
-verify (! TYPE_SIGNED (unsigned int));
-verify (TYPE_SIGNED (long int));
-verify (! TYPE_SIGNED (unsigned long int));
-verify (TYPE_SIGNED (intmax_t));
-verify (! TYPE_SIGNED (uintmax_t));
-
-/* TYPE_MINIMUM, TYPE_MAXIMUM. */
-verify (TYPE_MINIMUM (char) == CHAR_MIN);
-verify (TYPE_MAXIMUM (char) == CHAR_MAX);
-verify (TYPE_MINIMUM (unsigned char) == 0);
-verify (TYPE_MAXIMUM (unsigned char) == UCHAR_MAX);
-verify (TYPE_MINIMUM (signed char) == SCHAR_MIN);
-verify (TYPE_MAXIMUM (signed char) == SCHAR_MAX);
-verify (TYPE_MINIMUM (short int) == SHRT_MIN);
-verify (TYPE_MAXIMUM (short int) == SHRT_MAX);
-verify (TYPE_MINIMUM (unsigned short int) == 0);
-verify (TYPE_MAXIMUM (unsigned short int) == USHRT_MAX);
-verify (TYPE_MINIMUM (int) == INT_MIN);
-verify (TYPE_MAXIMUM (int) == INT_MAX);
-verify (TYPE_MINIMUM (unsigned int) == 0);
-verify (TYPE_MAXIMUM (unsigned int) == UINT_MAX);
-verify (TYPE_MINIMUM (long int) == LONG_MIN);
-verify (TYPE_MAXIMUM (long int) == LONG_MAX);
-verify (TYPE_MINIMUM (unsigned long int) == 0);
-verify (TYPE_MAXIMUM (unsigned long int) == ULONG_MAX);
-verify (TYPE_MINIMUM (intmax_t) == INTMAX_MIN);
-verify (TYPE_MAXIMUM (intmax_t) == INTMAX_MAX);
-verify (TYPE_MINIMUM (uintmax_t) == 0);
-verify (TYPE_MAXIMUM (uintmax_t) == UINTMAX_MAX);
-
-/* INT_BITS_STRLEN_BOUND. */
-verify (INT_BITS_STRLEN_BOUND (1) == 1);
-verify (INT_BITS_STRLEN_BOUND (2620) == 789);
-
-/* INT_STRLEN_BOUND, INT_BUFSIZE_BOUND. */
-#ifdef INT32_MAX /* POSIX guarantees int32_t; this ports to non-POSIX hosts */
-verify (INT_STRLEN_BOUND (int32_t) == sizeof ("-2147483648") - 1);
-verify (INT_BUFSIZE_BOUND (int32_t) == sizeof ("-2147483648"));
-#endif
-#ifdef INT64_MAX
-verify (INT_STRLEN_BOUND (int64_t) == sizeof ("-9223372036854775808") - 1);
-verify (INT_BUFSIZE_BOUND (int64_t) == sizeof ("-9223372036854775808"));
+/* VERIFY (X) uses a static assertion for compilers that are known to work,
+ and falls back on a dynamic assertion for other compilers.
+ These tests should be checkable via 'verify' rather than 'ASSERT', but
+ using 'verify' would run into a bug with HP-UX 11.23 cc; see
+ <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>. */
+#if __GNUC__ || __SUNPRO_C
+# define VERIFY(x) do { verify (x); } while (0)
+#else
+# define VERIFY(x) ASSERT (x)
#endif
-/* All the INT_<op>_RANGE_OVERFLOW tests are equally valid as
- INT_<op>_OVERFLOW tests, so define a single macro to do both. */
-#define check_binop(op, a, b, min, max, overflow) \
- (INT_##op##_RANGE_OVERFLOW (a, b, min, max) == (overflow) \
- && INT_##op##_OVERFLOW (a, b) == (overflow))
-#define check_unop(op, a, min, max, overflow) \
- (INT_##op##_RANGE_OVERFLOW (a, min, max) == (overflow) \
- && INT_##op##_OVERFLOW (a) == (overflow))
-
-/* INT_<op>_RANGE_OVERFLOW, INT_<op>_OVERFLOW. */
-verify (INT_ADD_RANGE_OVERFLOW (INT_MAX, 1, INT_MIN, INT_MAX));
-verify (INT_ADD_OVERFLOW (INT_MAX, 1));
-verify (check_binop (ADD, INT_MAX, 1, INT_MIN, INT_MAX, true));
-verify (check_binop (ADD, INT_MAX, -1, INT_MIN, INT_MAX, false));
-verify (check_binop (ADD, INT_MIN, 1, INT_MIN, INT_MAX, false));
-verify (check_binop (ADD, INT_MIN, -1, INT_MIN, INT_MAX, true));
-verify (check_binop (ADD, UINT_MAX, 1u, 0u, UINT_MAX, true));
-verify (check_binop (ADD, 0u, 1u, 0u, UINT_MAX, false));
-
-verify (check_binop (SUBTRACT, INT_MAX, 1, INT_MIN, INT_MAX, false));
-verify (check_binop (SUBTRACT, INT_MAX, -1, INT_MIN, INT_MAX, true));
-verify (check_binop (SUBTRACT, INT_MIN, 1, INT_MIN, INT_MAX, true));
-verify (check_binop (SUBTRACT, INT_MIN, -1, INT_MIN, INT_MAX, false));
-verify (check_binop (SUBTRACT, UINT_MAX, 1u, 0u, UINT_MAX, false));
-verify (check_binop (SUBTRACT, 0u, 1u, 0u, UINT_MAX, true));
-
-verify (check_unop (NEGATE, INT_MIN, INT_MIN, INT_MAX,
- TYPE_TWOS_COMPLEMENT (int)));
-verify (check_unop (NEGATE, 0, INT_MIN, INT_MAX, false));
-verify (check_unop (NEGATE, INT_MAX, INT_MIN, INT_MAX, false));
-verify (check_unop (NEGATE, 0u, 0u, UINT_MAX, false));
-verify (check_unop (NEGATE, 1u, 0u, UINT_MAX, true));
-verify (check_unop (NEGATE, UINT_MAX, 0u, UINT_MAX, true));
-
-verify (check_binop (MULTIPLY, INT_MAX, INT_MAX, INT_MIN, INT_MAX, true));
-verify (check_binop (MULTIPLY, INT_MAX, INT_MIN, INT_MIN, INT_MAX, true));
-verify (check_binop (MULTIPLY, INT_MIN, INT_MAX, INT_MIN, INT_MAX, true));
-verify (check_binop (MULTIPLY, INT_MIN, INT_MIN, INT_MIN, INT_MAX, true));
-verify (check_binop (MULTIPLY, -1, INT_MIN, INT_MIN, INT_MAX,
- INT_NEGATE_OVERFLOW (INT_MIN)));
-verify (check_binop (MULTIPLY, LONG_MIN / INT_MAX, (long int) INT_MAX,
- LONG_MIN, LONG_MIN, false));
-
-verify (check_binop (DIVIDE, INT_MIN, -1, INT_MIN, INT_MAX,
- INT_NEGATE_OVERFLOW (INT_MIN)));
-verify (check_binop (DIVIDE, INT_MAX, 1, INT_MIN, INT_MAX, false));
-verify (check_binop (DIVIDE, (unsigned int) INT_MIN,
- -1u, 0u, UINT_MAX, false));
-
-verify (check_binop (REMAINDER, INT_MIN, -1, INT_MIN, INT_MAX,
- INT_NEGATE_OVERFLOW (INT_MIN)));
-verify (check_binop (REMAINDER, INT_MAX, 1, INT_MIN, INT_MAX, false));
-verify (check_binop (REMAINDER, (unsigned int) INT_MIN,
- -1u, 0u, UINT_MAX, false));
-
-verify (check_binop (LEFT_SHIFT, UINT_MAX, 1, 0u, UINT_MAX, true));
-verify (check_binop (LEFT_SHIFT, UINT_MAX / 2 + 1, 1, 0u, UINT_MAX, true));
-verify (check_binop (LEFT_SHIFT, UINT_MAX / 2, 1, 0u, UINT_MAX, false));
-
-/* INT_<op>_OVERFLOW with mixed types. */
-#define check_sum(a, b, overflow) \
- verify (INT_ADD_OVERFLOW (a, b) == (overflow)); \
- verify (INT_ADD_OVERFLOW (b, a) == (overflow))
-check_sum (-1, LONG_MIN, true);
-check_sum (-1, UINT_MAX, false);
-check_sum (-1L, INT_MIN, INT_MIN == LONG_MIN);
-check_sum (0u, -1, true);
-check_sum (0u, 0, false);
-check_sum (0u, 1, false);
-check_sum (1, LONG_MAX, true);
-check_sum (1, UINT_MAX, true);
-check_sum (1L, INT_MAX, INT_MAX == LONG_MAX);
-check_sum (1u, INT_MAX, INT_MAX == UINT_MAX);
-check_sum (1u, INT_MIN, true);
-
-verify (! INT_SUBTRACT_OVERFLOW (INT_MAX, 1u));
-verify (! INT_SUBTRACT_OVERFLOW (UINT_MAX, 1));
-verify (! INT_SUBTRACT_OVERFLOW (0u, -1));
-verify (INT_SUBTRACT_OVERFLOW (UINT_MAX, -1));
-verify (INT_SUBTRACT_OVERFLOW (INT_MIN, 1u));
-verify (INT_SUBTRACT_OVERFLOW (-1, 0u));
-
-#define check_product(a, b, overflow) \
- verify (INT_MULTIPLY_OVERFLOW (a, b) == (overflow)); \
- verify (INT_MULTIPLY_OVERFLOW (b, a) == (overflow))
-
-check_product (-1, 1u, true);
-check_product (-1, INT_MIN, INT_NEGATE_OVERFLOW (INT_MIN));
-check_product (-1, UINT_MAX, true);
-check_product (-12345, LONG_MAX / -12345 - 1, true);
-check_product (-12345, LONG_MAX / -12345, false);
-check_product (0, -1, false);
-check_product (0, 0, false);
-check_product (0, 0u, false);
-check_product (0, 1, false);
-check_product (0, INT_MAX, false);
-check_product (0, INT_MIN, false);
-check_product (0, UINT_MAX, false);
-check_product (0u, -1, false);
-check_product (0u, 0, false);
-check_product (0u, 0u, false);
-check_product (0u, 1, false);
-check_product (0u, INT_MAX, false);
-check_product (0u, INT_MIN, false);
-check_product (0u, UINT_MAX, false);
-check_product (1, INT_MAX, false);
-check_product (1, INT_MIN, false);
-check_product (1, UINT_MAX, false);
-check_product (1u, INT_MIN, true);
-check_product (1u, INT_MAX, UINT_MAX < INT_MAX);
-check_product (INT_MAX, UINT_MAX, true);
-check_product (INT_MAX, ULONG_MAX, true);
-check_product (INT_MIN, LONG_MAX / INT_MIN - 1, true);
-check_product (INT_MIN, LONG_MAX / INT_MIN, false);
-check_product (INT_MIN, UINT_MAX, true);
-check_product (INT_MIN, ULONG_MAX, true);
-
-verify (INT_DIVIDE_OVERFLOW (INT_MIN, -1L)
- == (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN));
-verify (! INT_DIVIDE_OVERFLOW (INT_MIN, UINT_MAX));
-verify (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINTMAX_MAX));
-verify (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINT_MAX));
-verify (INT_DIVIDE_OVERFLOW (-11, 10u));
-verify (INT_DIVIDE_OVERFLOW (-10, 10u));
-verify (! INT_DIVIDE_OVERFLOW (-9, 10u));
-verify (INT_DIVIDE_OVERFLOW (11u, -10));
-verify (INT_DIVIDE_OVERFLOW (10u, -10));
-verify (! INT_DIVIDE_OVERFLOW (9u, -10));
-
-verify (INT_REMAINDER_OVERFLOW (INT_MIN, -1L)
- == (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN));
-verify (INT_REMAINDER_OVERFLOW (-1, UINT_MAX));
-verify (INT_REMAINDER_OVERFLOW ((intmax_t) -1, UINTMAX_MAX));
-verify (INT_REMAINDER_OVERFLOW (INTMAX_MIN, UINT_MAX)
- == (INTMAX_MAX < UINT_MAX
- && - (unsigned int) INTMAX_MIN % UINT_MAX != 0));
-verify (INT_REMAINDER_OVERFLOW (INT_MIN, ULONG_MAX)
- == (INT_MIN % ULONG_MAX != 1));
-verify (! INT_REMAINDER_OVERFLOW (1u, -1));
-verify (! INT_REMAINDER_OVERFLOW (37*39u, -39));
-verify (INT_REMAINDER_OVERFLOW (37*39u + 1, -39));
-verify (INT_REMAINDER_OVERFLOW (37*39u - 1, -39));
-verify (! INT_REMAINDER_OVERFLOW (LONG_MAX, -INT_MAX));
-
int
main (void)
{
- /* Test expressions that might not be integer constant expressions. */
+ /* Use VERIFY for tests that must be integer constant expressions,
+ ASSERT otherwise. */
/* TYPE_IS_INTEGER. */
ASSERT (TYPE_IS_INTEGER (bool));
@@ -251,9 +61,209 @@ main (void)
ASSERT (! TYPE_IS_INTEGER (long double));
/* TYPE_SIGNED. */
+ /* VERIFY (! TYPE_SIGNED (bool)); // not guaranteed by gnulib substitute */
+ VERIFY (TYPE_SIGNED (signed char));
+ VERIFY (! TYPE_SIGNED (unsigned char));
+ VERIFY (TYPE_SIGNED (short int));
+ VERIFY (! TYPE_SIGNED (unsigned short int));
+ VERIFY (TYPE_SIGNED (int));
+ VERIFY (! TYPE_SIGNED (unsigned int));
+ VERIFY (TYPE_SIGNED (long int));
+ VERIFY (! TYPE_SIGNED (unsigned long int));
+ VERIFY (TYPE_SIGNED (intmax_t));
+ VERIFY (! TYPE_SIGNED (uintmax_t));
ASSERT (TYPE_SIGNED (float));
ASSERT (TYPE_SIGNED (double));
ASSERT (TYPE_SIGNED (long double));
+ /* Integer representation. */
+ VERIFY (INT_MIN + INT_MAX < 0
+ ? (TYPE_TWOS_COMPLEMENT (int)
+ && ! TYPE_ONES_COMPLEMENT (int) && ! TYPE_SIGNED_MAGNITUDE (int))
+ : (! TYPE_TWOS_COMPLEMENT (int)
+ && (TYPE_ONES_COMPLEMENT (int) || TYPE_SIGNED_MAGNITUDE (int))));
+
+ /* TYPE_MINIMUM, TYPE_MAXIMUM. */
+ VERIFY (TYPE_MINIMUM (char) == CHAR_MIN);
+ VERIFY (TYPE_MAXIMUM (char) == CHAR_MAX);
+ VERIFY (TYPE_MINIMUM (unsigned char) == 0);
+ VERIFY (TYPE_MAXIMUM (unsigned char) == UCHAR_MAX);
+ VERIFY (TYPE_MINIMUM (signed char) == SCHAR_MIN);
+ VERIFY (TYPE_MAXIMUM (signed char) == SCHAR_MAX);
+ VERIFY (TYPE_MINIMUM (short int) == SHRT_MIN);
+ VERIFY (TYPE_MAXIMUM (short int) == SHRT_MAX);
+ VERIFY (TYPE_MINIMUM (unsigned short int) == 0);
+ VERIFY (TYPE_MAXIMUM (unsigned short int) == USHRT_MAX);
+ VERIFY (TYPE_MINIMUM (int) == INT_MIN);
+ VERIFY (TYPE_MAXIMUM (int) == INT_MAX);
+ VERIFY (TYPE_MINIMUM (unsigned int) == 0);
+ VERIFY (TYPE_MAXIMUM (unsigned int) == UINT_MAX);
+ VERIFY (TYPE_MINIMUM (long int) == LONG_MIN);
+ VERIFY (TYPE_MAXIMUM (long int) == LONG_MAX);
+ VERIFY (TYPE_MINIMUM (unsigned long int) == 0);
+ VERIFY (TYPE_MAXIMUM (unsigned long int) == ULONG_MAX);
+ VERIFY (TYPE_MINIMUM (intmax_t) == INTMAX_MIN);
+ VERIFY (TYPE_MAXIMUM (intmax_t) == INTMAX_MAX);
+ VERIFY (TYPE_MINIMUM (uintmax_t) == 0);
+ VERIFY (TYPE_MAXIMUM (uintmax_t) == UINTMAX_MAX);
+
+ /* INT_BITS_STRLEN_BOUND. */
+ VERIFY (INT_BITS_STRLEN_BOUND (1) == 1);
+ VERIFY (INT_BITS_STRLEN_BOUND (2620) == 789);
+
+ /* INT_STRLEN_BOUND, INT_BUFSIZE_BOUND. */
+ #ifdef INT32_MAX /* POSIX guarantees int32_t; this ports to non-POSIX. */
+ VERIFY (INT_STRLEN_BOUND (int32_t) == sizeof ("-2147483648") - 1);
+ VERIFY (INT_BUFSIZE_BOUND (int32_t) == sizeof ("-2147483648"));
+ #endif
+ #ifdef INT64_MAX
+ VERIFY (INT_STRLEN_BOUND (int64_t) == sizeof ("-9223372036854775808") - 1);
+ VERIFY (INT_BUFSIZE_BOUND (int64_t) == sizeof ("-9223372036854775808"));
+ #endif
+
+ /* All the INT_<op>_RANGE_OVERFLOW tests are equally valid as
+ INT_<op>_OVERFLOW tests, so define a single macro to do both. */
+ #define CHECK_BINOP(op, a, b, min, max, overflow) \
+ (INT_##op##_RANGE_OVERFLOW (a, b, min, max) == (overflow) \
+ && INT_##op##_OVERFLOW (a, b) == (overflow))
+ #define CHECK_UNOP(op, a, min, max, overflow) \
+ (INT_##op##_RANGE_OVERFLOW (a, min, max) == (overflow) \
+ && INT_##op##_OVERFLOW (a) == (overflow))
+
+ /* INT_<op>_RANGE_OVERFLOW, INT_<op>_OVERFLOW. */
+ VERIFY (INT_ADD_RANGE_OVERFLOW (INT_MAX, 1, INT_MIN, INT_MAX));
+ VERIFY (INT_ADD_OVERFLOW (INT_MAX, 1));
+ VERIFY (CHECK_BINOP (ADD, INT_MAX, 1, INT_MIN, INT_MAX, true));
+ VERIFY (CHECK_BINOP (ADD, INT_MAX, -1, INT_MIN, INT_MAX, false));
+ VERIFY (CHECK_BINOP (ADD, INT_MIN, 1, INT_MIN, INT_MAX, false));
+ VERIFY (CHECK_BINOP (ADD, INT_MIN, -1, INT_MIN, INT_MAX, true));
+ VERIFY (CHECK_BINOP (ADD, UINT_MAX, 1u, 0u, UINT_MAX, true));
+ VERIFY (CHECK_BINOP (ADD, 0u, 1u, 0u, UINT_MAX, false));
+
+ VERIFY (CHECK_BINOP (SUBTRACT, INT_MAX, 1, INT_MIN, INT_MAX, false));
+ VERIFY (CHECK_BINOP (SUBTRACT, INT_MAX, -1, INT_MIN, INT_MAX, true));
+ VERIFY (CHECK_BINOP (SUBTRACT, INT_MIN, 1, INT_MIN, INT_MAX, true));
+ VERIFY (CHECK_BINOP (SUBTRACT, INT_MIN, -1, INT_MIN, INT_MAX, false));
+ VERIFY (CHECK_BINOP (SUBTRACT, UINT_MAX, 1u, 0u, UINT_MAX, false));
+ VERIFY (CHECK_BINOP (SUBTRACT, 0u, 1u, 0u, UINT_MAX, true));
+
+ VERIFY (CHECK_UNOP (NEGATE, INT_MIN, INT_MIN, INT_MAX,
+ TYPE_TWOS_COMPLEMENT (int)));
+ VERIFY (CHECK_UNOP (NEGATE, 0, INT_MIN, INT_MAX, false));
+ VERIFY (CHECK_UNOP (NEGATE, INT_MAX, INT_MIN, INT_MAX, false));
+ VERIFY (CHECK_UNOP (NEGATE, 0u, 0u, UINT_MAX, false));
+ VERIFY (CHECK_UNOP (NEGATE, 1u, 0u, UINT_MAX, true));
+ VERIFY (CHECK_UNOP (NEGATE, UINT_MAX, 0u, UINT_MAX, true));
+
+ VERIFY (CHECK_BINOP (MULTIPLY, INT_MAX, INT_MAX, INT_MIN, INT_MAX, true));
+ VERIFY (CHECK_BINOP (MULTIPLY, INT_MAX, INT_MIN, INT_MIN, INT_MAX, true));
+ VERIFY (CHECK_BINOP (MULTIPLY, INT_MIN, INT_MAX, INT_MIN, INT_MAX, true));
+ VERIFY (CHECK_BINOP (MULTIPLY, INT_MIN, INT_MIN, INT_MIN, INT_MAX, true));
+ VERIFY (CHECK_BINOP (MULTIPLY, -1, INT_MIN, INT_MIN, INT_MAX,
+ INT_NEGATE_OVERFLOW (INT_MIN)));
+ VERIFY (CHECK_BINOP (MULTIPLY, LONG_MIN / INT_MAX, (long int) INT_MAX,
+ LONG_MIN, LONG_MIN, false));
+
+ VERIFY (CHECK_BINOP (DIVIDE, INT_MIN, -1, INT_MIN, INT_MAX,
+ INT_NEGATE_OVERFLOW (INT_MIN)));
+ VERIFY (CHECK_BINOP (DIVIDE, INT_MAX, 1, INT_MIN, INT_MAX, false));
+ VERIFY (CHECK_BINOP (DIVIDE, (unsigned int) INT_MIN,
+ -1u, 0u, UINT_MAX, false));
+
+ VERIFY (CHECK_BINOP (REMAINDER, INT_MIN, -1, INT_MIN, INT_MAX,
+ INT_NEGATE_OVERFLOW (INT_MIN)));
+ VERIFY (CHECK_BINOP (REMAINDER, INT_MAX, 1, INT_MIN, INT_MAX, false));
+ VERIFY (CHECK_BINOP (REMAINDER, (unsigned int) INT_MIN,
+ -1u, 0u, UINT_MAX, false));
+
+ VERIFY (CHECK_BINOP (LEFT_SHIFT, UINT_MAX, 1, 0u, UINT_MAX, true));
+ VERIFY (CHECK_BINOP (LEFT_SHIFT, UINT_MAX / 2 + 1, 1, 0u, UINT_MAX, true));
+ VERIFY (CHECK_BINOP (LEFT_SHIFT, UINT_MAX / 2, 1, 0u, UINT_MAX, false));
+
+ /* INT_<op>_OVERFLOW with mixed types. */
+ #define CHECK_SUM(a, b, overflow) \
+ VERIFY (INT_ADD_OVERFLOW (a, b) == (overflow)); \
+ VERIFY (INT_ADD_OVERFLOW (b, a) == (overflow))
+ CHECK_SUM (-1, LONG_MIN, true);
+ CHECK_SUM (-1, UINT_MAX, false);
+ CHECK_SUM (-1L, INT_MIN, INT_MIN == LONG_MIN);
+ CHECK_SUM (0u, -1, true);
+ CHECK_SUM (0u, 0, false);
+ CHECK_SUM (0u, 1, false);
+ CHECK_SUM (1, LONG_MAX, true);
+ CHECK_SUM (1, UINT_MAX, true);
+ CHECK_SUM (1L, INT_MAX, INT_MAX == LONG_MAX);
+ CHECK_SUM (1u, INT_MAX, INT_MAX == UINT_MAX);
+ CHECK_SUM (1u, INT_MIN, true);
+
+ VERIFY (! INT_SUBTRACT_OVERFLOW (INT_MAX, 1u));
+ VERIFY (! INT_SUBTRACT_OVERFLOW (UINT_MAX, 1));
+ VERIFY (! INT_SUBTRACT_OVERFLOW (0u, -1));
+ VERIFY (INT_SUBTRACT_OVERFLOW (UINT_MAX, -1));
+ VERIFY (INT_SUBTRACT_OVERFLOW (INT_MIN, 1u));
+ VERIFY (INT_SUBTRACT_OVERFLOW (-1, 0u));
+
+ #define CHECK_PRODUCT(a, b, overflow) \
+ VERIFY (INT_MULTIPLY_OVERFLOW (a, b) == (overflow)); \
+ VERIFY (INT_MULTIPLY_OVERFLOW (b, a) == (overflow))
+
+ CHECK_PRODUCT (-1, 1u, true);
+ CHECK_PRODUCT (-1, INT_MIN, INT_NEGATE_OVERFLOW (INT_MIN));
+ CHECK_PRODUCT (-1, UINT_MAX, true);
+ CHECK_PRODUCT (-12345, LONG_MAX / -12345 - 1, true);
+ CHECK_PRODUCT (-12345, LONG_MAX / -12345, false);
+ CHECK_PRODUCT (0, -1, false);
+ CHECK_PRODUCT (0, 0, false);
+ CHECK_PRODUCT (0, 0u, false);
+ CHECK_PRODUCT (0, 1, false);
+ CHECK_PRODUCT (0, INT_MAX, false);
+ CHECK_PRODUCT (0, INT_MIN, false);
+ CHECK_PRODUCT (0, UINT_MAX, false);
+ CHECK_PRODUCT (0u, -1, false);
+ CHECK_PRODUCT (0u, 0, false);
+ CHECK_PRODUCT (0u, 0u, false);
+ CHECK_PRODUCT (0u, 1, false);
+ CHECK_PRODUCT (0u, INT_MAX, false);
+ CHECK_PRODUCT (0u, INT_MIN, false);
+ CHECK_PRODUCT (0u, UINT_MAX, false);
+ CHECK_PRODUCT (1, INT_MAX, false);
+ CHECK_PRODUCT (1, INT_MIN, false);
+ CHECK_PRODUCT (1, UINT_MAX, false);
+ CHECK_PRODUCT (1u, INT_MIN, true);
+ CHECK_PRODUCT (1u, INT_MAX, UINT_MAX < INT_MAX);
+ CHECK_PRODUCT (INT_MAX, UINT_MAX, true);
+ CHECK_PRODUCT (INT_MAX, ULONG_MAX, true);
+ CHECK_PRODUCT (INT_MIN, LONG_MAX / INT_MIN - 1, true);
+ CHECK_PRODUCT (INT_MIN, LONG_MAX / INT_MIN, false);
+ CHECK_PRODUCT (INT_MIN, UINT_MAX, true);
+ CHECK_PRODUCT (INT_MIN, ULONG_MAX, true);
+
+ VERIFY (INT_DIVIDE_OVERFLOW (INT_MIN, -1L)
+ == (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN));
+ VERIFY (! INT_DIVIDE_OVERFLOW (INT_MIN, UINT_MAX));
+ VERIFY (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINTMAX_MAX));
+ VERIFY (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINT_MAX));
+ VERIFY (INT_DIVIDE_OVERFLOW (-11, 10u));
+ VERIFY (INT_DIVIDE_OVERFLOW (-10, 10u));
+ VERIFY (! INT_DIVIDE_OVERFLOW (-9, 10u));
+ VERIFY (INT_DIVIDE_OVERFLOW (11u, -10));
+ VERIFY (INT_DIVIDE_OVERFLOW (10u, -10));
+ VERIFY (! INT_DIVIDE_OVERFLOW (9u, -10));
+
+ VERIFY (INT_REMAINDER_OVERFLOW (INT_MIN, -1L)
+ == (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN));
+ VERIFY (INT_REMAINDER_OVERFLOW (-1, UINT_MAX));
+ VERIFY (INT_REMAINDER_OVERFLOW ((intmax_t) -1, UINTMAX_MAX));
+ VERIFY (INT_REMAINDER_OVERFLOW (INTMAX_MIN, UINT_MAX)
+ == (INTMAX_MAX < UINT_MAX
+ && - (unsigned int) INTMAX_MIN % UINT_MAX != 0));
+ VERIFY (INT_REMAINDER_OVERFLOW (INT_MIN, ULONG_MAX)
+ == (INT_MIN % ULONG_MAX != 1));
+ VERIFY (! INT_REMAINDER_OVERFLOW (1u, -1));
+ VERIFY (! INT_REMAINDER_OVERFLOW (37*39u, -39));
+ VERIFY (INT_REMAINDER_OVERFLOW (37*39u + 1, -39));
+ VERIFY (INT_REMAINDER_OVERFLOW (37*39u - 1, -39));
+ VERIFY (! INT_REMAINDER_OVERFLOW (LONG_MAX, -INT_MAX));
+
return 0;
}
--
1.7.5.1
- proposed new module intprops-test, Paul Eggert, 2011/05/10
- Re: proposed new module intprops-test, Eric Blake, 2011/05/10
- Re: proposed new module intprops-test, Paul Eggert, 2011/05/10
- Re: proposed new module intprops-test, Bruno Haible, 2011/05/18
- Re: proposed new module intprops-test, Paul Eggert, 2011/05/19
- Re: proposed new module intprops-test, Bruno Haible, 2011/05/19
- Re: proposed new module intprops-test,
Paul Eggert <=
- Re: proposed new module intprops-test, Bruno Haible, 2011/05/20
- Re: proposed new module intprops-test, Paul Eggert, 2011/05/20