Function to_rts

include/daScript/simulate/sim_policy.h:767–770

    extern DAS_API const char * rts_null;

    __forceinline const char * to_rts ( vec4f a ) {
        const char * s = cast<const char *>::to(a);
        return s ? s : rts_null;
    }

    __forceinline const char * to_rts ( const char * s ) {
        return s ? s : rts_null;