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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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crt
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src
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wcsncpy.c
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C/C++ Source or Header
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1998-06-17
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2KB
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56 lines
/***
*wcsncpy.c - copy at most n characters of wide-character string
*
* Copyright (c) 1985-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines wcsncpy() - copy at most n characters of wchar_t string
*
*******************************************************************************/
#include <cruntime.h>
#include <string.h>
/***
*wchar_t *wcsncpy(dest, source, count) - copy at most n wide characters
*
*Purpose:
* Copies count characters from the source string to the
* destination. If count is less than the length of source,
* NO NULL CHARACTER is put onto the end of the copied string.
* If count is greater than the length of sources, dest is padded
* with null characters to length count (wide-characters).
*
*
*Entry:
* wchar_t *dest - pointer to destination
* wchar_t *source - source string for copy
* size_t count - max number of characters to copy
*
*Exit:
* returns dest
*
*Exceptions:
*
*******************************************************************************/
wchar_t * __cdecl wcsncpy (
wchar_t * dest,
const wchar_t * source,
size_t count
)
{
wchar_t *start = dest;
while (count && (*dest++ = *source++)) /* copy string */
count--;
if (count) /* pad out with zeroes */
while (--count)
*dest++ = L'\0';
return(start);
}