int isfinite(fpval): Returns nonzero if fpval is finite : isfinite « math.h « C / ANSI-C

1. C / ANSI-C
2. math.h
3. isfinite

int isfinite(fpval): Returns nonzero if fpval is finite

  

#include <stdio.h>
#include <math.h>

int main(void)
{
  printf("isfinite(-1.0) %d\n", isfinite(-1.0));
  printf("isfinite(1.0) %d\n", isfinite(1.0));
  printf("isfinite(1.0/0.0) %d\n", isfinite(1.0/0.0));
  return 0;
}

         
/*
isfinite(-1.0) 1
isfinite(1.0) 1
isfinite(1.0/0.0) 0

*/
           
       

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