Are you facing issues compiling specific headers like <ext/pb_ds/assoc_container.hpp>
and <ext/pb_ds/tree_policy.hpp>
using the default compiler (clang) on your Mac?
I faced the same issue while solving 1915F - Приветствия, where I wanted to use ordered_set.
Here's a step-by-step guide to switch to g++-13 and configure your IDE (in this case, VS Code) for successful compilation:
Step 1: Install and Set Up g++-13
Install g++-13 (or latest version): Open Terminal. Use Homebrew to install g++-13: `brew install gcc@13`. Verify Installation: Type `g++-13 --version` in Terminal to ensure successful installation. Update Terminal Configuration for g++-13: Open the .bashrc or .bash_profile file in Terminal using a text editor like nano or vim: `nano ~/.bashrc` (or `nano ~/.bash_profile`). Add the following line at the end of the file: `export PATH=/usr/local/bin:$PATH` Save the changes and apply them by either restarting Terminal or running `source ~/.bashrc` (or `source ~/.bash_profile`).
Step 2: Configure IDE (VS Code)
Open VS Code: Launch your Visual Studio Code editor. Install Required Extensions: If not installed, get the C/C++ extension for VS Code. Change Compiler Path: Access VS Code settings/preferences. Search for "C/C++: Default Compiler Path" setting. Modify the path to point to g++-13 installed via Homebrew (/usr/local/bin/g++-13). Adjust Intellisense Mode: Look for the setting related to Intellisense or Language Server. Change the mode to macos-gcc-arm64.
Step 3: Restart and Test
Restart VS Code: Close and reopen Visual Studio Code. Restart Terminal: Close and reopen Terminal for the changes to take effect. Compile and Test: Open your C++ project in VS Code. Compile the code that includes <ext/pb_ds/assoc_container.hpp> and <ext/pb_ds/tree_policy.hpp>. Verify that the compilation is successful without any errors.
By following these steps, you should now be able to compile the problematic headers using g++-13 within VS Code on your MacOS environment. Updating the terminal's configuration ensures that the system knows where to find the g++-13 compiler when invoked from the Terminal, complementing the changes made within VS Code settings for a seamless integration of the updated compiler.