Modern C++ Programming Cookbook

How to do it...

• Create type aliases with the form using identifier = type-id as in the following examples:

        using byte    = unsigned char;         using pbyte   = unsigned char *;         using array_t = int[10];         using fn      = void(byte, double);         void func(byte b, double d) { /*...*/ }         byte b {42};         pbyte pb = new byte[10] {0};         array_t a{0,1,2,3,4,5,6,7,8,9};         fn* f = func;

• Create alias templates with the form template<template-params-list> identifier = type-id as in the following examples:

        template <class T>         class custom_allocator { /* ... */};         template <typename T>         using vec_t = std::vector<T, custom_allocator<T>>;         vec_t<int>           vi;         vec_t<std::string>   vs; 

For consistency and readability, you should do the following:

• Not mix typedef and using ...