21 lines · cpp
1// RUN: %clangxx -O2 %s -o %t && %run %t 2>&1 | FileCheck %s2 3#include <math.h>4#include <stdio.h>5#include <stdlib.h>6 7int main() {8 for (int i = 0; i < 10000; i++) {9 volatile double x = 10;10 int exp = 0;11 double y = frexp(x, &exp);12 if (y != 0.625 || exp != 4) {13 printf("i=%d y=%lf exp=%d\n", i, y, exp);14 exit(1);15 }16 }17 fprintf(stderr, "DONE\n");18 // CHECK: DONE19 return 0;20}21