sairate
c34823a3bd
- 新增现代 C++ 教程的 Preface 章节，包括英文和中文版本 - 添加 C++ Primer 练习代码 - 新增 Learn C++ 教程的 C++ 开发简介章节 - 添加头文件解析文档 - 更新 mkdocs.yml，包含新教程的目录结构 - 修改项目设置，使用 Python 3.10环境
31 lines
818 B
C++
31 lines
818 B
C++
//
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// 2.3.if.switch.cpp
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// chapter 2 language usability
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// modern cpp tutorial
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//
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// created by changkun at changkun.de
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// https://github.com/changkun/modern-cpp-tutorial
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//
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#include <iostream>
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#include <vector>
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#include <algorithm>
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int main() {
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std::vector<int> vec = {1, 2, 3, 4};
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// after c++17, can be simplefied by using `auto`
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const std::vector<int>::iterator itr = std::find(vec.begin(), vec.end(), 2);
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if (itr != vec.end()) {
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*itr = 3;
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}
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if (const std::vector<int>::iterator itr = std::find(vec.begin(), vec.end(), 3);
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itr != vec.end()) {
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*itr = 4;
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}
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// should output: 1, 4, 3, 4. can be simplefied using `auto`
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for (std::vector<int>::iterator element = vec.begin(); element != vec.end(); ++element)
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std::cout << *element << std::endl;
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} |