strw_assign.c

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/* unicode string assigning function */

#include "fb.h"

FBCALL FB_WCHAR *fb_WstrAssign( FB_WCHAR *dst, ssize_t dst_chars, FB_WCHAR *src )
{
        ssize_t src_chars;

        if( dst == NULL )
                return dst;

        if( src == 0 )
                src_chars = 0;
        else
                src_chars = fb_wstr_Len( src );

        /* src NULL? */
        if( src_chars == 0 )
        {
                *dst = 0;
        }
        else
        {
                if( dst_chars > 0 )
                {
                        --dst_chars;                                            /* less the null-term */
                        /* not enough? clamp */
                        if( dst_chars < src_chars )
                                src_chars = dst_chars;
                }

                fb_wstr_Copy( dst, src, src_chars );
        }

        return dst;
}