| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 1 | /* copied from rsync */ |
| 2 | |
| 3 | #include <stdio.h> |
| 4 | #include <stdlib.h> |
| 5 | #include <string.h> |
| 6 | #include <sys/types.h> |
| 7 | #include <stdarg.h> |
| 8 | static int foo(const char *format, ...) |
| 9 | { |
| 10 | va_list ap; |
| 11 | size_t len; |
| 12 | char buf[5]; |
| 13 | |
| 14 | va_start(ap, format); |
| 15 | len = vsnprintf(0, 0, format, ap); |
| 16 | va_end(ap); |
| 17 | if (len != 5) return(1); |
| 18 | |
| 19 | if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) return(1); |
| 20 | |
| 21 | return(0); |
| 22 | } |
| 23 | int main(void) { return foo("hello"); } |