blob: 3716c5a3802802aa9dc03458272c9a9a23076a6f [file] [log] [blame]
/*
* Copyright 2016 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <stdio.h>
int IsNaN(double x) {
int rc; /* The value return */
volatile double y = x;
volatile double z = y;
rc = (y != z);
return rc;
}
int main() {
double tests[] = {1.0, 3.333, 1.0 / 0.0, 0.0 / 0.0, -1.0 / 0.0,
-0, 0, -123123123, 12.0E200};
for (int i = 0; i < sizeof(tests) / sizeof(double); i++)
printf("%d - %f - %d\n", i, tests[i], IsNaN(tests[i]));
}