Method operator+

src/script/script.h:280–286

    }

    inline CScriptNum operator+(const int64_t &rhs) const {
        int64_t result;
        if (AddInt63Overflow(m_value, rhs, result)) {
            throw scriptnum_overflow_error("script number overflow");
        }
        return CScriptNum(result);
    }
    inline CScriptNum operator-(const int64_t &rhs) const {
        int64_t result;
        if (SubInt63Overflow(m_value, rhs, result)) {