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cheatsheet-tldr/tldr/clang++
2024-09-24 00:17:10 +00:00

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---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# clang++
> Compile C++ source files.
> Part of LLVM.
> More information: <https://clang.llvm.org>.
- Compile a set of source code files into an executable binary:
`clang++ {{path/to/source1.cpp path/to/source2.cpp ...}} {{-o|--output}} {{path/to/output_executable}}`
- Activate output of all errors and warnings:
`clang++ {{path/to/source.cpp}} -Wall {{-o|--output}} {{output_executable}}`
- Show common warnings, debug symbols in output, and optimize without affecting debugging:
`clang++ {{path/to/source.cpp}} -Wall {{-g|--debug}} -Og {{-o|--output}} {{path/to/output_executable}}`
- Choose a language standard to compile for:
`clang++ {{path/to/source.cpp}} -std={{c++20}} {{-o|--output}} {{path/to/output_executable}}`
- Include libraries located at a different path than the source file:
`clang++ {{path/to/source.cpp}} {{-o|--output}} {{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|--assemble}} -emit-llvm {{path/to/source.cpp}} {{-o|--output}} {{path/to/output.ll}}`
- Optimize the compiled program for performance:
`clang++ {{path/to/source.cpp}} -O{{1|2|3|fast}} {{-o|--output}} {{path/to/output_executable}}`
- Display version:
`clang++ --version`