Source code of Windows XP (NT5)
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/***
*mbsset.c - Sets all charcaters of string to given character (MBCS)
*
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* Sets all charcaters of string to given character (MBCS)
*
*Revision History:
* 11-19-92 KRS Ported from 16-bit sources.
* 08-20-93 CFW Change short params to int for 32-bit tree.
* 10-05-93 GJF Replaced _CRTAPI1 with __cdecl.
* 05-09-94 CFW Optimize for SBCS.
* 09-11-97 GJF Replaced __mbcodepage == 0 with _ISNOTMBCP.
*
*******************************************************************************/
#ifdef _MBCS
#include <cruntime.h>
#include <string.h>
#include <mbdata.h>
#include <mbctype.h>
#include <mbstring.h>
/***
* mbsset - Sets all charcaters of string to given character (MBCS)
*
*Purpose:
* Sets all of characters in string (except the terminating '/0'
* character) equal to the supplied character. Handles MBCS
* chars correctly.
*
*Entry:
* unsigned char *string = string to modify
* unsigned int val = value to fill string with
*
*Exit:
* returns string = now filled with the specified char
*
*Uses:
*
*Exceptions:
*
*******************************************************************************/
unsigned char * __cdecl _mbsset(
unsigned char *string,
unsigned int val
)
{
unsigned char *start = string;
unsigned char highval, lowval;
if ( _ISNOTMBCP )
return _strset(string, val);
if (highval = (unsigned char) (val>>8)) {
/* 2-byte value */
lowval = (unsigned char)(val & 0x00ff);
while (*string) {
*string++ = highval;
if (*string)
*string++ = lowval;
else
/* don't orphan lead byte */
string[-1] = ' ';
}
}
else {
/* single byte value */
while (*string)
*string++ = (unsigned char)val;
}
return(start);
}
#endif /* _MBCS */