💡 TL;DR：An overview of the new C++11 features: Variadic Templates, Spaces in Template Expressions, nullptr, auto type deduction, uniform initialization, initializer_list, and more.

Last updated：2026-10-13

C++11 New Features Overview

1.C++11 New Features

• Variadic Templates

• Spaces in Template Expressions

vector<list<int> > //ok in each C++ version
vector<list<int>> // before c++ 11 error error: ‘>>’ should be ‘> >’ within a nested template argument list,c++11后可以正常通过

• nullptr and nullptr_t

• Automatic Type Deduction with auto

• Uniform Initialization

• initializer_list

• explicit for ctors taking more than one argument

• range-based for statement

for(decl:col) {
    statement
}

• =default,=delete

If you define a ctor yourself, the compiler will no longer give you a default ctor. By forcibly adding =default, you can regain and use the default ctor.

• Alias Template (template typedef)

• alias.cpp

• template_template.cpp

• template template parameter

• type alias

• noexcept

• override

• final

• decltype

• lambda

• Rvalue reference

• move aware class

• Containers - structure and classification

• (1) Sequence containers include: array (newly introduced in C++2.0), vector, deque, list, forward_list (newly introduced in C++2.0)

• (2) Associative containers include: set/multiset, map/multimap

• (3) Unordered containers (newly introduced in C++2.0, replacing the former hash_xxx with unordered_xxx) include: unordered_map/unordered_multimap, unordered_set/unordered_multiset

• Hash Function

• tuple

Learning material: https://www.bilibili.com/video/av51863195?from=search&seid=3610634846288253061

Related Topics

• How C++ std::move Works and How to Use It | C++那些事
• C++ std::bind vs lambda | C++那些事
• C++ Variadic Templates | C++那些事

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