tldr/pages/common/clang++.md

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2021-09-11 09:32:32 +01:00
# clang++
> Compile C++ source files.
2021-09-11 09:32:32 +01:00
> Part of LLVM.
> More information: <https://clang.llvm.org>.
- Compile a source code file into an executable binary:
`clang++ {{path/to/source.cpp}} -o {{path/to/output_executable}}`
- Display (almost) all errors and warnings:
`clang++ {{path/to/source.cpp}} -Wall -o {{path/to/output_executable}}`
- Choose a language standard to compile with:
`clang++ {{path/to/source.cpp}} -std={{c++20}} -o {{path/to/output_executable}}`
- Include libraries located at a different path than the source file:
`clang++ {{path/to/source.cpp}} -o {{path/to/output_executable}} -I{{path/to/header_path}} -L{{path/to/library_path}} -l{{path/to/library_name}}`
- Compile source code into LLVM Intermediate Representation (IR):
`clang++ -S -emit-llvm {{path/to/source.cpp}} -o {{path/to/output.ll}}`
- Optimize the compiled program for performance:
`clang++ {{path/to/source.cpp}} -O{{1|2|3|fast}} -o {{path/to/output_executable}}`