Method SetAdd

src/simulate/runtime_string.cpp:269–287

    }

    void SimPolicy_String::SetAdd ( char * a, vec4f b, Context & context, LineInfo * at ) {
        char ** pA = (char **)a;
        const char *  sA = *pA ? *pA : rts_null;
        auto la = stringLength(context, sA);
        const char *  sB = to_rts(b);
        auto lb = stringLength(context, sB);
        uint32_t commonLength = la + lb;
        if ( !commonLength ) {
            // *pA = nullptr; is unnecessary, because its already nullptr
            return;
        } else if ( char * sAB = (char * ) context.allocateString(nullptr, commonLength, at) ) {
            memcpy ( sAB, sA, la );
            memcpy ( sAB+la, sB, lb+1 );
            *pA = sAB;
            context.stringHeap->recognize(sAB);
        } else {
            context.throw_out_of_memory(true, commonLength, at);
        }
    }

    // helper functions