Method safeAdd

src/script/script.h:386–394

Arithmetic operations

    // Arithmetic operations
    ScriptNumResult safeAdd(int64_t x) const noexcept
    {
        const bool overflow = __builtin_add_overflow(_value, x, &x);
        if (overflow)
        {
            return boost::none;
        }
        return fromInt(x);
    }

    ScriptNumResult safeAdd(CScriptNum const &x) const noexcept { return safeAdd(x._value); }