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C++11 现代 C++ 奠基标准拆解大典

参考官方标准: ISO/IEC 14882:2011 C++11 Standard
C++11 是现代 C++ (Modern C++) 的奠基之作,引入了 auto 自动类型推导Lambda 表达式移动语义与右值引用 (std::move) 以及 智能指针 (std::unique_ptr, std::shared_ptr)


🐳 容器运行环境 (Runtime Environment)

在标准 Docker 镜像 gcc:13 中执行控制台诊断指令 g++ --version

📸 Unverified Snapshot📋gcc:13
⏱️ 536msNot verified
gcc (GCC) 13.4.0
Copyright (C) 2023 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

1. ⚡ 自动类型推导与移动语义 (auto & std::move)

通过 auto 让编译器推导变量类型,借助 std::move 实现资源的所有权转移而非深拷贝。

cpp
// 关联源码: demos/cpp/cpp11_demo.cpp
auto factorial = [](int n) {
    int res = 1;
    for (int i = 1; i <= n; ++i) res *= i;
    return res;
};
📸 Unverified Snapshot📋gcc:13
⏱️ 1948msNot verified
C++11 Auto & Lambda Demo:
Calculated Factorial(5) = 120
Vector elements: 1 2 3 4 5

Released under the MIT License.