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authorJoseph Myers <joseph@codesourcery.com>2017-01-11 14:02:23 +0000
committerJoseph Myers <joseph@codesourcery.com>2017-01-11 14:02:23 +0000
commit3c9378265a8633e2c85a393b54a16abcf64fe616 (patch)
tree0f6ff383099de1314f7134b24a8b05cae339a82e /wcsmbs
parent436cfba0abf749e5993b52dce589bae482f8c58a (diff)
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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.c8
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;