Method calc

lib/mathlib.cpp:125–223

MathLib::value MathLib::value::calc(char op, const MathLib::value &v1, const MathLib::value &v2)
{
    value temp(v1);
    temp.promote(v2);
    if (temp.isFloat()) {
        switch (op) {
        case '+':
            temp.mDoubleValue += v2.getDoubleValue();
            break;
        case '-':
            temp.mDoubleValue -= v2.getDoubleValue();
            break;
        case '*':
            temp.mDoubleValue *= v2.getDoubleValue();
            break;
        case '/':
            temp.mDoubleValue /= v2.getDoubleValue();
            break;
        case '%':
        case '&':
        case '|':
        case '^':
            throw InternalError(nullptr, "Invalid calculation");
        default:
            throw InternalError(nullptr, "Unhandled calculation");
        }
    } else if (temp.mIsUnsigned) {
        switch (op) {
        case '+':
            temp.mIntValue += static_cast<unsigned long long>(v2.mIntValue);
            break;
        case '-':
            temp.mIntValue -= static_cast<unsigned long long>(v2.mIntValue);
            break;
        case '*':
            temp.mIntValue *= static_cast<unsigned long long>(v2.mIntValue);
            break;
        case '/':
            if (v2.mIntValue == 0)
                throw InternalError(nullptr, "Internal Error: Division by zero");
            if (v1.mIntValue == std::numeric_limits<bigint>::min() && std::abs(v2.mIntValue)<=1)
                throw InternalError(nullptr, "Internal Error: Division overflow");
            temp.mIntValue /= static_cast<unsigned long long>(v2.mIntValue);
            break;
        case '%':
            if (v2.mIntValue == 0)
                throw InternalError(nullptr, "Internal Error: Division by zero");
            temp.mIntValue %= static_cast<unsigned long long>(v2.mIntValue);
            break;
        case '&':
            temp.mIntValue &= static_cast<unsigned long long>(v2.mIntValue);
            break;
        case '|':
            temp.mIntValue |= static_cast<unsigned long long>(v2.mIntValue);
            break;
        case '^':
            temp.mIntValue ^= static_cast<unsigned long long>(v2.mIntValue);
            break;