mbtowc.c

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/*
 * COPYRIGHT:   See COPYING in the top level directory
 * PROJECT:     ReactOS system libraries
 * FILE:        lib/crt/??????
 * PURPOSE:     Unknown
 * PROGRAMER:   Unknown
 * UPDATE HISTORY:
 *              25/11/05: Added license header
 */

#include <precomp.h>


/*
 * @implemented
 */

int mbtowc (wchar_t *charptr, const char *address, size_t number)
{
    int bytes;

    if (address == 0)
    return 0;

    if ((bytes = mblen (address, number)) < 0)
    return bytes;

    if (charptr) {
    switch (bytes) {
    case 0:
        if (number > 0) 
        *charptr = (wchar_t) '\0';
        break;
    case 1:
        *charptr = (wchar_t) ((unsigned char) address[0]);
        break;
    case 2:
        *charptr = (wchar_t) (((unsigned char) address[0] << 8)
                  | (unsigned char) address[1]);
        break;
    }
    }

    return bytes;
}