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c++ double is nan

Different Dove answered on September 25, 2020 Popularity 8/10 Helpfulness 4/10

answer c++ double is nan

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c++ double is nan

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/* isnan example */
#include <stdio.h>      /* printf */
#include <math.h>       /* isnan, sqrt */

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

Popularity 8/10 Helpfulness 4/10 Language cpp

Source: www.cplusplus.com

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Contributed on Nov 26 2020

Different Dove

0 Answers Avg Quality 2/10

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C++ is nan

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-1

doubel a = 0 ;
bool isnan_a = std::isnan(a) || std::isnan(-a);

Popularity 9/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on Sep 25 2020

Tender Tiger

0 Answers Avg Quality 2/10

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c++ double is nan

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