jstrcat.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 95 行

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*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
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*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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****************************************************************************/


#include "variety.h"
#include <jstring.h>


/**
*
*  Name:        jstrcat         暥帤楍傪寢崌偡傞
*               jstrncat
*
*  Synopsis:    p = jstrncat( to, from, n );
*               p = jstrcat( to, from );
*
*               JSTRING p;      倲倧偲摨偠抣
*               JSTRING to;     寢崌偝傟傞暥帤楍
*               JSTRING from;   寢崌偡傞暥帤楍
*               int n;          暥帤悢
*
*  Description: 暥帤楍倲倧偺屻偵暥帤楍倖倰倧倣偺愭摢偐傜
*               値暥帤暘偩偗寢崌偡傞丅
*
*  Returns:     戞侾堷悢倲倧偲摨偠傕偺傪曉偡丅
*
*
*  Name:        jstrcat          concatenate KANJI strings
*               jstrncat
*
*  Synopsis:    p = jstrncat( to, from, n );
*               p = jstrcat( to, from );
*
*               JSTRING p;      same value as argument "to"
*               JSTRING to;     distination KANJI string pointer.
*               JSTRING from;   KANJI string pointer for appendage
*               int     n;      number of letters should be appended
*
* Description:  The jstrcat and jstrncat functions append a copy of the KANJI
*               string pointed to by "from" to the end of the KANJI string
*               pointed to by "to".  The first letter of "from" overwrite the
*               null character at the end of "to", and jstrncat appends only
*               "n" number of letters.
*
*  Returns:     The value of "to" is returned.
**/

_WCRTLINK JSTRING jstrncat( JCHAR *to, const JCHAR *from, size_t n )
{
    JCHAR *p;
    size_t m;
    JMOJI mm;

    p = to;
    while( p = jgetmoji( p, &mm ), mm );

    m = mtob( from, n );
    while( m-- > 0 ) *p++ = *from++;
    *p = '\0';
    return( to );
}

_WCRTLINK JSTRING jstrcat( JCHAR *to, const JCHAR *from )
{
    return jstrncat( to, from, jstrlen( from ) );
}