README.md

- Table of Contents

• Ⅰ、jncpp project
• Ⅱ、Description
• Ⅲ、Compile
• Ⅳ、Features and Usage
• Ⅴ、End

Ⅰ、jncpp project

A C++ library for everyone to use.

Ⅱ、Description

Header file only for C++ library, simplifying C++ development further.Supports C++11 and later.

Ⅲ、Compile

Ensure CMake is installed

mkdir build; cd build
cmake -DBUILD_EXAMPLES=ON ..
make && make install

Specify installation path

cmake -DCMAKE_INSTALL_PREFIX=$PWD/libs/jncpp ..

Ⅳ、Features and Usage

1.defer

The Go programming language has a defer keyword that allows you to execute code at the end of a function. Similarly, C++ could benefit from such a feature, especially when working with C code. See more defer example.

• Global defer: Runs after the main function.

global_defer
{
    std::cout << "defer code 1.0" << std::endl;
}; // semicolon required

• Local defer: Run before the end of scope.

void function() {
    defer // Run before the end of scope.
    {
        std::cout << "defer code 1.0" << std::endl;
    };  // semicolon required

    {
        defer // Run before the end of scope.
        {
            std::cout << "defer code 0.0" << std::endl;
        };  
    }
}

2.Call_Once

let std::call_once more clean, as code:

void function() {
    Call_Once (
        std::cout << "Call_Once" << std::endl;
    };  // semicolon required
);

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3. wait more ...

Ⅴ、End

This project was created by DuJingning.