opt40.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 19 行

#include "fail.h"
#include <limits.h>

const unsigned int maxlen = UINT_MAX;

int main( void )
{
    unsigned i;
    char *a = "hello";

    for ( i = 0; a[i] && i < maxlen; i++ );
    /* loop optimizer bug: the i < maxlen test
       overflowed in OW 1.0 and earlier */

    if ( i != 5 )
        _fail;
    _PASS;
}