C/math.h/isunordered

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int isunordered(a, b): Returns 1 if a and b are unordered relative to each other; zero is returned if a and b are ordered

<source lang="cpp">

  1. include <stdio.h>
  2. include <math.h>

int main(void) {

 printf("isunordered(1.0, 2.0) %d\n", isunordered(1.0, 2.0));
 printf("isunordered(1.0, 1.0) %d\n", isunordered(1.0, 1.0));
 printf("isunordered(2.0, 1.0) %d\n", isunordered(2.0, 1.0));
 return 0;

}

/* isunordered(1.0, 2.0) 0 isunordered(1.0, 1.0) 0 isunordered(2.0, 1.0) 0

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      </source>