ref: 79dd4bd00f26488b4cb49b689878e9bd2c1711ad
dir: /tests/libc/execute/0009-stdarg.c/
#include <assert.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> /* TODO: Test va_copy, new c99 extension. output: test 1 test 2 end: */ void test(char *s, char *fmt, ...) { va_list va; int cnt = 1; long long *p; puts(s); va_start(va, fmt); while (*fmt) { printf("fmt = '%c'\n", *fmt); switch (*fmt++) { case 'c': assert(va_arg(va, int) == cnt++); break; case 's': assert(va_arg(va, int) == cnt++); break; case 'i': assert(va_arg(va, int) == cnt++); break; case 'l': assert(va_arg(va, long) == cnt++); break; case 'q': assert(va_arg(va, long long) == cnt++); break; case 'p': p = va_arg(va, void *); assert(*p == cnt++); break; case 'f': assert(va_arg(va, double) == cnt++); break; default: abort(); } } va_end(va); } int main() { char c; short s; int i; long l; long long ll; float f; c = 1; i = 2; l = 3; ll = 4; test("test 1", "cilp", c, i, l, (void *) &ll); c = 1; s = 2; ll = 3; f = 4.0; test("test 2", "csqf", c, s, ll, f); return 0; }