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| author | Ivan Maidanski <ivmai@mail.ru> | 2022-04-25 23:22:58 +0300 |
|---|---|---|
| committer | Ivan Maidanski <ivmai@mail.ru> | 2022-04-25 23:24:03 +0300 |
| commit | e90fce7c34474f175fcf47ec614bac58b447416d (patch) | |
| tree | 91269aa2b95f6498b433a0a9c845540a3903f817 /cord/tests | |
| parent | d82755f6fbdad03226eac6d70815e32db9ffcf4d (diff) | |
| download | bdwgc-e90fce7c34474f175fcf47ec614bac58b447416d.tar.gz | |
Eliminate 'ISO C++98 does not support z gnu_printf modifier' gcc warning
(fix of commit d82755f6f)
Issue #439 (bdwgc).
* cord/tests/cordtest.c (zu_format): New global variable.
* cord/tests/cordtest.c (test_printf): Pass zu_format variable (instead
of "%zu") to GC_SNPRINTF (and sprintf); add comment; print a message
if res!=1.
Diffstat (limited to 'cord/tests')
| -rw-r--r-- | cord/tests/cordtest.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/cord/tests/cordtest.c b/cord/tests/cordtest.c index ca1304be..bb8d4975 100644 --- a/cord/tests/cordtest.c +++ b/cord/tests/cordtest.c @@ -272,6 +272,8 @@ int wrap_vfprintf(FILE * f, CORD format, ...) # endif #endif +/* no static */ /* no const */ char *zu_format = "%zu"; + void test_printf(void) { CORD result; @@ -305,9 +307,11 @@ void test_printf(void) if (CORD_cmp(result, result2) != 0) ABORT("CORD_sprintf goofed 5"); # ifdef GC_SNPRINTF - res = GC_SNPRINTF(result2, sizeof(result2), "%zu", (size_t)0); + /* Check whether "%zu" specifier is supported; pass the format */ + /* string via a variable to avoid a compiler warning if not. */ + res = GC_SNPRINTF(result2, sizeof(result2), zu_format, (size_t)0); # else - res = sprintf(result2, "%zu", (size_t)0); + res = sprintf(result2, zu_format, (size_t)0); # endif result2[sizeof(result2) - 1] = '\0'; if (res == 1) /* is "%z" supported by printf? */ { @@ -316,6 +320,8 @@ void test_printf(void) ABORT("CORD_sprintf failed 5"); if (CORD_cmp(result, "123 4567 0x4abc") != 0) ABORT("CORD_sprintf goofed 5"); + } else { + (void)CORD_printf("printf lacks support of 'z' modifier\n"); } /* TODO: Better test CORD_[v][f]printf. */ |