cmake_note

Note of cmake quick start

1.Install cmake

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sudo pacman -S cmake

2.Write your cpp program

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#include <iostream>

int main()
{
    std::cout << "Hello cpp!" << std::endl;

    int a = 10;
    int b = a * 2;
    std::cout << "b is " << b << std::endl;

    return 0;
}

3.Write CMakeLists.txt in project directory

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cmake_minimum_required(VERSION 3.15)

# set the project name
project(Maintest)

# add the executable
add_executable(Maintest main.cpp)

4.Make directory build and into it to init cmake, then build the project.

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mkdir build
cd build
cmake ..
cmake --build .

Now, you can see all the build files in build directory, you can run program like this

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./Maintest