mbsnicmp.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 64 行

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*
*                            Open Watcom Project
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*    This file contains Original Code and/or Modifications of Original
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#include "variety.h"
#include <mbstring.h>
#include "farfunc.h"



/****
***** Compare two strings, without case sensitivity, up to a specified
***** Maximum number of characters.  Equivalent to strnicmp().
****/

_WCRTLINK int _NEARFAR(_mbsnicmp,_fmbsnicmp)( const unsigned char _FFAR *s1, const unsigned char _FFAR *s2, size_t n )
{
    int                 status = 0;

//    if( !__IsDBCS )  return( strnicmp( s1, s2, n ) );

    /*** Compare characters, one by one ***/
    while( n>0 && !_NEARFAR(_mbterm,_fmbterm)(s1) && !_NEARFAR(_mbterm,_fmbterm)(s2) ) {
        status = _NEARFAR((_mbcicmp),(_fmbcicmp))( s1, s2 ); /* compare chars */
        if( status != 0 )  return( status );    /* if error, break from loop */
        s1 = _NEARFAR(_mbsinc,_fmbsinc)( s1 );  /* skip over character */
        s2 = _NEARFAR(_mbsinc,_fmbsinc)( s2 );  /* skip over character */
        n--;                                    /* update counter */
    }

    if( n > 0 ) /* implies that at least one of the strings terminated */
        return( *s1 - *s2 );
    else
        return( status );
}