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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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strncpy.c
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C/C++ Source or Header
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1998-06-17
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54 lines
/***
*strncpy.c - copy at most n characters of string
*
* Copyright (c) 1985-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines strncpy() - copy at most n characters of string
*
*******************************************************************************/
#include <cruntime.h>
#include <string.h>
/***
*char *strncpy(dest, source, count) - copy at most n 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.
*
*
*Entry:
* char *dest - pointer to destination
* char *source - source string for copy
* unsigned count - max number of characters to copy
*
*Exit:
* returns dest
*
*Exceptions:
*
*******************************************************************************/
char * __cdecl strncpy (
char * dest,
const char * source,
size_t count
)
{
char *start = dest;
while (count && (*dest++ = *source++)) /* copy string */
count--;
if (count) /* pad out with zeroes */
while (--count)
*dest++ = '\0';
return(start);
}