目录

All Major C++17 Features You Should Know

0001-01-01 约 166 字预计阅读 1 分钟

目录

Table of Contents

1 Language Features

本文为摘录(或转载)，侵删，原文为： https://www.cppstories.com/2017/01/cpp17features/

1 Language Features

1.1 New auto rules for direct-list-initialization

1.2 static_assert with no message

static_assert() 可以不用再写 message 了，类似 C assert

1.3 typename in a template template parameter

模板中以前只能用 class 来声明类型，现在可以用 typename 了

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template <template <typename...> typename Container>
//            used to be invalid ^^^^^^^^
struct foo;

foo<std::vector> my_foo;

1.4 Nested namespace definition

Allows to write:

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namespace A::B::C {
   // ...
}

Rather than:

namespace A {
    namespace B {
        namespace C {
            // ...
        }
    }
}