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| author | DJ Delorie <dj@redhat.com> | 2019-04-03 17:49:43 -0400 |
|---|---|---|
| committer | DJ Delorie <dj@redhat.com> | 2019-04-03 17:49:43 -0400 |
| commit | 8260f23616c1a2a4e609f989a195fba7690a42ca (patch) | |
| tree | 32e5108ea112e5aa178894a6cb94bc3084d2d70d /time/tst-strftime3.c | |
| parent | 0bd545ee235dd02aa95394e62bca1faff02eeae3 (diff) | |
| download | glibc-8260f23616c1a2a4e609f989a195fba7690a42ca.zip glibc-8260f23616c1a2a4e609f989a195fba7690a42ca.tar.gz glibc-8260f23616c1a2a4e609f989a195fba7690a42ca.tar.bz2 | |
time/tst-strftime3.c: Disable snprintf warning.
snprintf will only truncate the output if the data its given
is corrupted, but a truncated buffer will not match the
"pristine" data's buffer, which is all we need. So just
disable the warning via the DIAG macros.
Diffstat (limited to 'time/tst-strftime3.c')
| -rw-r--r-- | time/tst-strftime3.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/time/tst-strftime3.c b/time/tst-strftime3.c index 32ce0d9..eeca092 100644 --- a/time/tst-strftime3.c +++ b/time/tst-strftime3.c @@ -25,6 +25,7 @@ #include <support/check.h> #include <array_length.h> +#include <libc-diag.h> /* These exist for the convenience of writing the test data, because zero-based vs one-based. */ @@ -440,6 +441,14 @@ tm_to_printed (struct tm *tm, char *buffer) sprintf (temp, "%d", tm->tm_wday); } + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (9, 0) + /* GCC 9 warns that strncmp may truncate its output, but that's why + we're using it. When it needs to truncate, it got corrupted + data, and we only care that the string is different than valid + data, which won't truncate. */ + DIAG_IGNORE_NEEDS_COMMENT (9, "-Wformat-truncation="); +#endif snprintf (buffer, TMBUFLEN, "%04d/%02d/%02d %02d:%02d:%02d %s", tm->tm_year + 1900, tm->tm_mon + 1, @@ -448,6 +457,7 @@ tm_to_printed (struct tm *tm, char *buffer) tm->tm_min, tm->tm_sec, wn); + DIAG_POP_NEEDS_COMMENT; } static int |