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Reactos
1/***
2*mbsninc.c - Increment MBCS string pointer by specified char count.
3*
4* Copyright (c) Microsoft Corporation. All rights reserved.
5*
6*Purpose:
7* Increment MBCS string pointer by specified char count.
8*
9*******************************************************************************/
10#ifndef _MBCS
11 #error This file should only be compiled with _MBCS defined
12#endif
13
14#include <corecrt_internal_mbstring.h>
15#include <mbstring.h>
16#include <stddef.h>
17
18/***
19*_mbsninc - Increment MBCS string pointer by specified char count.
20*
21*Purpose:
22* Increment the supplied string pointer by the specified number
23* of characters. MBCS characters are handled correctly.
24*
25*Entry:
26* const unsigned char *string = pointer to string
27* unsigned int ccnt = number of char to advance the pointer
28*
29*Exit:
30* Returns pointer after advancing it.
31* Returns pointer to end of string if string is not ccnt chars long.
32* Returns nullptr is supplied pointer is nullptr.
33*
34*Exceptions:
35*
36*******************************************************************************/
37
38extern "C" unsigned char * __cdecl _mbsninc_l(
39 const unsigned char *string,
40 size_t ccnt,
41 _locale_t plocinfo
42 )
43{
44 if (string == nullptr)
45 return nullptr;
46
47 return const_cast<unsigned char*>(string) + (unsigned int)_mbsnbcnt_l(string, ccnt, plocinfo);
48}
49
50extern "C" unsigned char * (__cdecl _mbsninc)(
51 const unsigned char *string,
52 size_t ccnt
53 )
54{
55 return _mbsninc_l(string, ccnt, nullptr);
56}