atoi64.c File Reference

#include <precomp.h>

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Functions
__int64 CDECL	_atoi64 (const char *nptr)

Function Documentation

_atoi64()

__int64 CDECL _atoi64

(

const char *

nptr

)

Definition at line 18 of file atoi64.c.

{
  char *s = (char *)nptr;
  __int64 acc = 0;
  int neg = 0;
 
  if (nptr == NULL)
    return 0;
 
  while(isspace((int)*s))
    s++;
  if (*s == '-')
    {
      neg = 1;
      s++;
    }
  else if (*s == '+')
    s++;
 
  while (isdigit((int)*s))
    {
      acc = 10 * acc + ((int)*s - '0');
      s++;
    }
 
  if (neg)
    acc *= -1;
  return acc;
}