Function getDoubleFromObject

src/object.cpp:656–674

}

int getDoubleFromObject(const robj *o, double *target) {
    double value;

    if (o == NULL) {
        value = 0;
    } else {
        serverAssertWithInfo(NULL,o,o->type == OBJ_STRING);
        if (sdsEncodedObject(o)) {
            if (!string2d(szFromObj(o), sdslen(szFromObj(o)), &value))
                return C_ERR;
        } else if (o->encoding == OBJ_ENCODING_INT) {
            value = (long)ptrFromObj(o);
        } else {
            serverPanic("Unknown string encoding");
        }
    }
    *target = value;
    return C_OK;
}

int getDoubleFromObjectOrReply(client *c, robj *o, double *target, const char *msg) {
    double value;