vs code作为一个编辑器，提供不错的外观和出色的性能，大量的扩展插件使其成为出色的IDE。
Installing vs code
Install c/c++ extension
Using vs code
首先使用c/c++扩展写个测试代码。
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| c_cpp_properties.json
{
"configurations": [
{
"name": "Win32",
"includePath": [
"${workspaceFolder}/**",
"d:\\boost\\include\\boost-1_75"
],
"defines": [
"_DEBUG",
"UNICODE",
"_UNICODE"
],
"windowsSdkVersion": "10.0.18362.0",
"compilerPath": "C:/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/VC/Tools/MSVC/14.28.29333/bin/Hostx64/x64/cl.exe",
"cStandard": "c17",
"cppStandard": "c++17",
"intelliSenseMode": "msvc-x64"
}
],
"version": 4
}
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上面把boost配置includepath，这样vs code可以智能的完成代码补全和代码提示，非常高效。
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| tasks.json
{
"version": "2.0.0",
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: cl.exe build active file",
"command": "cl.exe",
"args": [
"/Zi",
"/EHsc",
"/ID:\\boost\\include\\boost-1_75",
"/Fe:",
"${fileDirname}\\${fileBasenameNoExtension}.exe",
"${file}"
],
"options": {
"cwd": "${workspaceFolder}"
},
"problemMatcher": [
"$msCompile"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "compiler: cl.exe"
}
]
}
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上面我们添加boost头文件，或者lib文件，可以方便的生成可执行文件。
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| launch.json
{
// 使用 IntelliSense 了解相关属性。
// 悬停以查看现有属性的描述。
// 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "(Windows) 启动",
"type": "cppvsdbg",
"request": "launch",
"program": "${workspaceFolder}/${fileBasenameNoExtension}.exe",
"args": [],
"stopAtEntry": false,
"cwd": "${workspaceFolder}",
"environment": [],
"externalConsole": false
}
]
}
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上面文件我们调试这个可执行文件的配置。
综上c/c++插件可以满足单个c++源文件的构建，在写测试代码时非常方便，但是多个文件的情况难以胜任。
Using cmake扩展
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| CMakeLists.txt
cmake_minimum_required(VERSION 3.0.0)
project(hello VERSION 0.1.0)
include(CTest)
enable_testing()
# 首先定义target
add_executable(hello foo.cpp main.cpp)
# 针对这个target设置include
target_include_directories(hello PRIVATE "d:\\boost\\include\\boost-1_75")
set(CPACK_PROJECT_NAME ${PROJECT_NAME})
set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
include(CPack)
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该扩展可以帮助生成基本的cmake配置文件，在此基础上可配置多个文件的编译生成。
boost例子
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| #include <iostream>
#include <boost/array.hpp>
extern void foo();
int main() {
boost::array<int,10> a;
a[0] = 1;
int i = std::get<0,int,10>(a);
std::cout<<i<<std::endl;
std::cout<<"hello from c++!"<<std::endl;
foo();
return 0;
}
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References