Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.c-torture/execute/printf-chk-1.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-skip-if "requires io" { freestanding } } */ #include <stdio.h> #include <stdlib.h> #include <stdarg.h> volatile int should_optimize; int __attribute__((noinline)) __printf_chk (int flag, const char *fmt, ...) { va_list ap; int ret; #ifdef __OPTIMIZE__ if (should_optimize) abort (); #endif should_optimize = 1; va_start (ap, fmt); ret = vprintf (fmt, ap); va_end (ap); return ret; } int main (void) { #define test(ret, opt, args...) \ should_optimize = opt; \ __printf_chk (1, args); \ if (!should_optimize) \ abort (); \ should_optimize = 0; \ if (__printf_chk (1, args) != ret) \ abort (); \ if (!should_optimize) \ abort (); test (5, 0, "hello"); test (6, 1, "hello\n"); test (1, 1, "a"); test (0, 1, ""); test (5, 0, "%s", "hello"); test (6, 1, "%s", "hello\n"); test (1, 1, "%s", "a"); test (0, 1, "%s", ""); test (1, 1, "%c", 'x'); test (7, 1, "%s\n", "hello\n"); test (2, 0, "%d\n", 0); return 0; }