mbccpy_s_l.cpp File Reference

#include <corecrt_internal_mbstring.h>
#include <corecrt_internal_securecrt.h>
#include <locale.h>

Include dependency graph for mbccpy_s_l.cpp:

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Functions
errno_t __cdecl	_mbccpy_s_l (unsigned char *_Dst, size_t _SizeInBytes, int *_PCopied, const unsigned char *_Src, _LOCALE_ARG_DECL)

Function Documentation

_mbccpy_s_l()

errno_t __cdecl _mbccpy_s_l	(	unsigned char *	_Dst,
		size_t	_SizeInBytes,
		int *	_PCopied,
		const unsigned char *	_Src,
		_LOCALE_ARG_DECL
	)

Definition at line 17 of file mbccpy_s_l.cpp.

{
    /* validation section */
    _ASSIGN_IF_NOT_NULL(_PCopied, 0);
    _VALIDATE_STRING(_Dst, _SizeInBytes);
    if (_Src == nullptr)
    {
        *_Dst = '\0';
        _RETURN_EINVAL;
    }
 
    _LOCALE_UPDATE;
 
    /* copy */
    if (_ISMBBLEAD(*_Src))
    {
        if (_Src[1] == '\0')
        {
            /* the source string contained a lead byte followed by the null terminator:
               we copy only the null terminator and return EILSEQ to indicate the
               malformed char */
            *_Dst = '\0';
            _ASSIGN_IF_NOT_NULL(_PCopied, 1);
            _RETURN_MBCS_ERROR;
        }
        if (_SizeInBytes < 2)
        {
            *_Dst = '\0';
            _RETURN_BUFFER_TOO_SMALL(_Dst, _SizeInBytes);
        }
        *_Dst++ = *_Src++;
        *_Dst = *_Src;
        _ASSIGN_IF_NOT_NULL(_PCopied, 2);
    }
    else
    {
        *_Dst = *_Src;
        _ASSIGN_IF_NOT_NULL(_PCopied, 1);
    }
 
    _RETURN_NO_ERROR;
}

Referenced by _mbccpy_l().