{f,}printf-posix test failure

[Ian Beckwith]

Hi,

printf-posix and fprintf-posix fail the test suite on debian stable and
unstable, i386 and ia64.

The problem seems to be the same, test-printf-posix2 and
test-fprintf-posix2 fail at the same place. Looking at
test-fprintf-posix2:

gltests/test-fprintf-posix2.sh runs "test-fprintf-posix2 1"
which fails:

(gdb) n
83          ret = fprintf (stdout, "%.5000000f", 1.0);
(gdb) n
84          return !(ret == 5000002 || (ret < 0 && errno == ENOMEM));
(gdb) p ret
$1 = -1
(gdb) p errno
$2 = 22

(22 == EINVAL)

The problem seems to be in vasnprintf.c.

vasnprintf.c:5023 calls SNPRINTF_BUF(arg);

The expansion of SNPRINTF_BUF includes at vasnprintf.c:4919:

retcount = SNPRINTF ((TCHAR_T *) (result + length), \
                     maxlen, buf,                   \
                     arg, &count);                  \

which, if I'm understanding it right (USE_SNPRINTF is defined), calls
the system's snprintf(), which returns -1.

Ian.

-- 
Ian Beckwith - address@hidden - http://erislabs.net/ianb/
GPG fingerprint: AF6C C0F1 1E74 424B BCD5  4814 40EC C154 A8BA C1EA
Listening to: Vampire Weekend - Contra - Giving Up The Gun

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