cppIncDecBasics

#include <iostream>

int main()
{
    const float Pi{ 3.1415 };
    float r1{2};
    float r2{4};
    float r3{8};
    float r0;

    r1 = r1 + 1;
    r1 += 1;

    r1 = 0;

    //  Expression  Result  Effect
    //  ++r1;   //  1       r1 <- 1
    //  r1++;   //  0       r1 <- 1

    //  Expression  Result  Effect
    //  --r1;   //  -1      r1 <- -1
    //  r1--;   //  0       r1 <- -1

    r1 = r1 + 1;
    r1 += 1;
    ++r1;
    r1++;


    //r1++;
    //++r1;

    std::cout << "r1 = " << (r1++) << '\n';
    std::cout << "r1 = " << r1 << '\n';





    /*std::cout << "Enter r1 resistance:\n";
    std::cin >> r1;

    std::cout << "Enter r2 resistance:\n";
    std::cin >> r2;

    std::cout << "Enter r3 resistance:\n";
    std::cin >> r3;

    r0 = 1 / (1 / r1 + 1 / r2 + 1 / r3);

    std::cout << "Total resistance is " << r0 << '\n';*/

    return 0;
}