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Trying to run C++ on Vscode on a Mac, but the stdc++.h library is not found. I want to setup bits/stdc++.h instead of the custom header of clang++.

fatal error: 'bits/stdc++.h' file not found.

It will help if someone give me the c_cpp_properties.json file and settings

Younis Rahman
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    Please read ["Why should I not #include ?"](https://stackoverflow.com/questions/31816095/why-should-i-not-include-bits-stdc-h). – G.M. Sep 15 '22 at 07:59

1 Answers1

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stdc++.h setup on mac (without xcode)

Assuming that you've installed the homebrew and C/C++ compiler extension. Then follow the steps. As the bits/stdc++ is a GNU GCC extension, where OSX uses the clang compiler.

  • brew install gcc

  • gcc --version

  • go to the /Library/Developer/CommandLineTools/usr/include directory (go to finder, type command+shift+g, then paste the directory name)

  • create a folder named bits inside this directory and then copy the stdc++.h file from this github link (https://github.com/gcc-mirror/gcc/blob/master/libstdc%2B%2B-v3/include/precompiled/stdc%2B%2B.h).

  • create a file naming bits/stdc++.h inside the bits folder and paste the code copied from the github link into bits/stdc++.h file, then save it.

  • then initially after restarting vscode, some user get a error message as some library is deprecated in stdc++.h. for dismissing that error, you should add the gcc library's path to c_cpp_properties.json file's includePath.

  • ("/usr/local/Cellar/gcc/12.2.0/include/c++/12", "/usr/local/Cellar/gcc/12.2.0/include/c++/12/x86_64-apple-darwin21")

You can get this path by hovering on your #include file on code too. add these two path to your includePath section inside of C_cpp_properties.json file. make sure your compilerPath is "/usr/bin/clang"

I am giving the c_cpp_properties.json initial file here for your understanding.

"configurations": [
        {
            "name": "Mac",
            "includePath": [
                "${workspaceFolder}/**",
                "/usr/local/Cellar/gcc/12.2.0/include/c++/12",
                "/usr/local/Cellar/gcc/12.2.0/include/c++/12/x86_64-apple-darwin21"
            ],
            "defines": [],
            "macFrameworkPath": [
                "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks"
            ],
            "compilerPath": "/usr/bin/clang",
            "cStandard": "c17",
            "cppStandard": "c++17",
            "intelliSenseMode": "macos-clang-x64"
        }
    ],
Faisal Mahmud Rifat
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