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/***
*mbsupr.c - Convert string upper case (MBCS)
*
* Copyright (c) 1985-1992, Microsoft Corporation. All rights reserved.
*
*Purpose:
* Convert string upper case (MBCS)
*
*Revision History:
* 11-19-92 KRS Ported from 16-bit sources.
*
*******************************************************************************/
#ifdef _MBCS
#include <cruntime.h>
#include <ctype.h>
#include <mbdata.h>
#include <mbstring.h>
#include <mbctype.h>
/***
* _mbsupr - Convert string upper case (MBCS)
*
*Purpose:
* Converts all the lower case characters in a string
* to upper case in place. Handles MBCS chars correctly.
*
*Entry:
* unsigned char *string = pointer to string
*
*Exit:
* Returns a pointer to the input string; no error return.
*
*Exceptions:
*
*******************************************************************************/
unsigned char * _CRTAPI1 _mbsupr( string )
unsigned char *string;
{
unsigned char *cp;
for (cp=string; *cp; cp++) {
if (_ISLEADBYTE(*cp)) {
#ifdef _MBCS_OS
cp++; /* bump pointer */
#else
if ((_mbascii) && (*cp == _MBASCIILEAD)) {
if ( (*(cp+1) >= (_MBLOWERLOW & 0x00FF))
&& (*(cp+1) <= (_MBLOWERHIGH & 0x00FF))
)
*(cp+1) -= _MBCASEDIFF;
}
cp++;
#endif
}
else
/* single byte, macro version */
*cp = (unsigned char) toupper(*cp);
}
return( string );
}
#endif /* _MBCS */
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