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TL;DR

g++

Compile C++ source files. Part of GCC (GNU Compiler Collection). More information: https://gcc.gnu.org.

  • Compile a source code file into an executable binary:

g++ path/to/source1.cpp path/to/source2.cpp ... -o|--output path/to/output_executable

  • Activate output of all errors and warnings:

g++ path/to/source.cpp -Wall -o|--output output_executable

  • Show common warnings, debug symbols in output, and optimize without affecting debugging:

g++ path/to/source.cpp -Wall -g|--debug -Og -o|--output path/to/output_executable

  • Choose a language standard to compile for (C++98/C++11/C++14/C++17):

g++ path/to/source.cpp -std=c++98|c++11|c++14|c++17 -o|--output path/to/output_executable

  • Include libraries located at a different path than the source file:

g++ path/to/source.cpp -o|--output path/to/output_executable -Ipath/to/header -Lpath/to/library -llibrary_name

  • Compile and link multiple source code files into an executable binary:

g++ -c|--compile path/to/source1.cpp path/to/source2.cpp ... && g++ -o|--output path/to/output_executable path/to/source1.o path/to/source2.o ...

  • Optimize the compiled program for performance:

g++ path/to/source.cpp -O1|2|3|fast -o|--output path/to/output_executable

  • Display version:

g++ --version

This document was created using the contents of the tldr project.