strw_concat.c

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/* wstring concatenation function */

#include "fb.h"

FBCALL FB_WCHAR *fb_WstrConcat ( const FB_WCHAR *str1, const FB_WCHAR *str2 )
{
        FB_WCHAR *dst, *d;
        ssize_t str1_len, str2_len;

        if( str1 != NULL )
                str1_len = fb_wstr_Len( str1 );
        else
                str1_len = 0;

        if( str2 != NULL )
                str2_len = fb_wstr_Len( str2 );
        else
                str2_len = 0;

        /* NULL? */
        if( str1_len + str2_len == 0 )
                return NULL;

        /* alloc temp string */
    dst = fb_wstr_AllocTemp( str1_len + str2_len );

        /* do the concatenation */
    d = fb_wstr_Move( dst, str1, str1_len );
    d = fb_wstr_Move( d, str2, str2_len );
    *d = L'\0';

        return dst;
}