asa55

Topic	Python	both	JavaScript
comments	# """ """		// /* */
declaration	my_var = 5		var myVar = 5 let myVar = 5 const myVar = 5
operators	//	+ - * ** / %
assignment		= += -= *= **= /= %=
deletion	del(my_var)		delete(myVar)
increment decrement			++ --
equivalence	is	==``!=	===``!==

asa55

#include <iostream>
#include <string>
#define print(s) std::cout << s << std::endl;
using String = std::string; // typedef std::string String; // I don't want to using namespace std - I only want to cherry-pick this one definition.

class Car {
    public:
        String brand;
        String model;
        int year;

asa55

#include <iostream>

#define LOG(x) std::cout << x << std::endl;

int main()
{
    char* buffer = new char[8];
    int a = 5;
    void* ptr = &a;
    LOG(*(int*)ptr);

asa55

#include <iostream>
#define print(s) std::cout << s << std::endl;

int increment0(int value) {
    value++;
    return value;
}

void increment1(int& value) {
    value++;

asa55

#include <iostream>
#include <string>

struct vector3 { float x, y, z; }; // struct or class, doesn't matter

int main() {
    int value = 5; // allocated on the stack
    int array[5];
    vector3 vector;
    array[0] = 1;

asa55

#include <iostream>
#include <string>
using String = std::string;

int main () {
    try {
        String my_str = "Yikes";
        throw my_str;
    }
    catch (String e) {

asa55

#include <iostream>
using namespace std;

template <typename T>
T square (T x) {
    return x*x;
}

int main() {
    cout << (5<4 ? "T" : "F") << endl;

asa55

#include <iostream>
#include <vector>

void Print(int s)
{
    std::cout << s << std::endl;
}

void ForEach(const std::vector<int>& values, void(*func)(int))
{

asa55

#include <iostream>
#include <vector>

int main()
{
    auto square = [](int num){return num*num;};
    auto print = [](int s){std::cout << s << std::endl;};

    std::vector<int> values = { 0, 1, 2, 3, 4, 5 };

asa55

#include "../CppLibs/Eigen/eigen-3.3.7/Eigen/Dense"
#include <iostream>

#define print(s) std::cout << s << std::endl //I know, I know. But it's one line and won't break anything.

// I thought about using lambdas for print to be nice but it's no bueno, and I'm not using namespace std and I'm not using << explicitly. It's so ugly. now I'm an outlaw using preprocessor commands on a whim. if you don't like it you're going to need to pry my print() function from my cold, dead hands.//auto print = [](std::string s){std::cout << s << std::endl;}; //I know 4 ways to do this now - typedef, define, using, and lambdas. no preprocessor stuff outside of ifndef. I wanted to template the lambda because I want to be able to print anything - but of course the lambda works using function pointers, and templates make multiple functions based on the use case and thus there are multiple function pointers - so of course it doesn't work... But templated lambdas will be introduced in C++20! Excited for this - should be out this mo