ReactOS  0.4.15-dev-3163-gf17c2c0
atoi64.c
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1 /*
2  * COPYRIGHT: See COPYING in the top level directory
3  * PROJECT: ReactOS system libraries
4  * FILE: lib/sdk/crt/string/atoi64.c
5  * PURPOSE: Unknown
6  * PROGRAMER: Unknown
7  * UPDATE HISTORY:
8  * 25/11/05: Added license header
9  */
10 
11 #include <precomp.h>
12 
13 /*
14  * @implemented
15  */
16 __int64
17 CDECL
18 _atoi64(const char *nptr)
19 {
20  char *s = (char *)nptr;
21  __int64 acc = 0;
22  int neg = 0;
23 
24  if (nptr == NULL)
25  return 0;
26 
27  while(isspace((int)*s))
28  s++;
29  if (*s == '-')
30  {
31  neg = 1;
32  s++;
33  }
34  else if (*s == '+')
35  s++;
36 
37  while (isdigit((int)*s))
38  {
39  acc = 10 * acc + ((int)*s - '0');
40  s++;
41  }
42 
43  if (neg)
44  acc *= -1;
45  return acc;
46 }
#define isspace(c)
Definition: acclib.h:69
#define isdigit(c)
Definition: acclib.h:68
__int64 CDECL _atoi64(const char *nptr)
Definition: atoi64.c:18
GLdouble s
Definition: gl.h:2039
#define CDECL
Definition: compat.h:29
#define NULL
Definition: types.h:112
#define __int64
Definition: basetyps.h:16
unsigned int(__cdecl typeof(jpeg_read_scanlines))(struct jpeg_decompress_struct *
Definition: typeof.h:31