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| author | Joseph Myers <joseph@codesourcery.com> | 2017-01-11 14:02:23 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-01-11 14:02:23 +0000 |
| commit | 3c9378265a8633e2c85a393b54a16abcf64fe616 (patch) | |
| tree | 0f6ff383099de1314f7134b24a8b05cae339a82e /wcsmbs | |
| parent | 436cfba0abf749e5993b52dce589bae482f8c58a (diff) | |
| download | glibc-3c9378265a8633e2c85a393b54a16abcf64fe616.tar.gz | |
Fix testsuite build for GCC 7 -Wformat-truncation.
This patch fixes the glibc testsuite build for GCC 7
-Wformat-truncation, newly moved out of -Wformat-length and with some
further warnings that didn't previously appear. Two tests that
previously disabled -Wformat-length are changed to disable
-Wformat-truncation instead; two others are made to disable that
option as well.
Tested (compilation only) with build-many-glibcs.py for aarch64 with
GCC mainline.
* stdio-common/tst-printf.c [__GNUC_PREREQ (7, 0)]: Ignore
-Wformat-truncation instead of -Wformat-length.
* time/tst-strptime2.c (mkbuf) [__GNUC_PREREQ (7, 0)]: Likewise.
* stdio-common/tstdiomisc.c (F): Ignore -Wformat-truncation for
GCC 7.
* wcsmbs/tst-wcstof.c: Include <libc-internal.h>.
(do_test): Ignore -Wformat-truncation for GCC 7.
Diffstat (limited to 'wcsmbs')
| -rw-r--r-- | wcsmbs/tst-wcstof.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/wcsmbs/tst-wcstof.c b/wcsmbs/tst-wcstof.c index 576a58c023..861f65905a 100644 --- a/wcsmbs/tst-wcstof.c +++ b/wcsmbs/tst-wcstof.c @@ -3,6 +3,7 @@ #include <stdio.h> #include <string.h> #include <wctype.h> +#include <libc-internal.h> static int do_test (void) @@ -14,7 +15,14 @@ do_test (void) tmp[1] = '1'; tmp[2] = 0; + /* GCC does not know the result of wcstof so cannot see that the + snprintf output is not truncated. */ + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (7, 0) + DIAG_IGNORE_NEEDS_COMMENT (7.0, "-Wformat-truncation"); +#endif snprintf (buf, 100, "%S = %f", tmp, wcstof (tmp, NULL)); + DIAG_POP_NEEDS_COMMENT; printf ("\"%s\" -> %s\n", buf, strcmp (buf, "81 = 81.000000") == 0 ? "okay" : "buggy"); result |= strcmp (buf, "81 = 81.000000") != 0; |