diff options
Diffstat (limited to 'lib/replace/tests/snprintf.c')
-rw-r--r-- | lib/replace/tests/snprintf.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/lib/replace/tests/snprintf.c b/lib/replace/tests/snprintf.c new file mode 100644 index 0000000..77473f0 --- /dev/null +++ b/lib/replace/tests/snprintf.c @@ -0,0 +1,29 @@ +void foo(const char *format, ...) +{ + va_list ap; + int len; + char buf[20]; + long long l = 1234567890; + l *= 100; + + va_start(ap, format); + len = vsnprintf(buf, 0, format, ap); + va_end(ap); + if (len != 5) exit(1); + + va_start(ap, format); + len = vsnprintf(0, 0, format, ap); + va_end(ap); + if (len != 5) exit(2); + + if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(3); + + if (snprintf(buf, 20, "%lld", l) != 12 || strcmp(buf, "123456789000") != 0) exit(4); + if (snprintf(buf, 20, "%zu", 123456789) != 9 || strcmp(buf, "123456789") != 0) exit(5); + if (snprintf(buf, 20, "%2\$d %1\$d", 3, 4) != 3 || strcmp(buf, "4 3") != 0) exit(6); + if (snprintf(buf, 20, "%s", 0) < 3) exit(7); + + printf("1"); + exit(0); +} +int main(void) { foo("hello"); } |