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glibc  2.9
Functions
s_nanf.c File Reference
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ieee754.h>

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Functions

float __nanf (const char *tagp)

Function Documentation

float __nanf ( const char *  tagp)

Definition at line 29 of file s_nanf.c.

{
  if (tagp[0] != '\0')
    {
      char buf[6 + strlen (tagp)];
      sprintf (buf, "NAN(%s)", tagp);
      return strtof (buf, NULL);
    }

  return NAN;
}

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