Linux command
clang++ 命令
文本
复制后可按需替换文件名、目录或参数。
常用示例
Compile a C++ source file
clang++ [source.cpp] -o [output]
Compile with C++17 standard
clang++ -std=c++17 [source.cpp] -o [output]
Compile with optimizations
clang++ -O2 [source.cpp] -o [output]
Compile with debug symbols
clang++ -g [source.cpp] -o [output]
Compile with all warnings and treat them as errors
clang++ -Wall -Wextra -Werror [source.cpp] -o [output]
Define a preprocessor macro and compile
clang++ -D[MACRO=value] [source.cpp] -o [output]
Link with a library
clang++ [source.cpp] -l[library] -o [output]
Generate object file only
clang++ -c [source.cpp] -o [source.o]
说明
clang++ is the Clang C++ compiler frontend, part of the LLVM project. It compiles C++ source code to executable binaries or object files. Clang provides fast compilation, expressive diagnostics, and GCC compatibility. It supports modern C++ standards and provides advanced static analysis and tooling integration.
参数
- -o _file_
- Output file name.
- -c
- Compile only, don't link.
- -std=_standard_
- Set C++ standard (c++11, c++14, c++17, c++20, c++23, c++26).
- -O_level_
- Optimization level (0, 1, 2, 3, s, z).
- -g
- Generate debug information.
- -Wall
- Enable most warnings.
- -Wextra
- Enable extra warnings.
- -I _path_
- Add include directory.
- -L _path_
- Add library search path.
- -l _library_
- Link with library.
- -D _macro=value_
- Define preprocessor macro.
- -Werror
- Treat warnings as errors.
- -Wpedantic
- Issue warnings demanded by strict ISO C++ compliance.
- -stdlib=_library_
- Specify C++ standard library (libc++ or libstdc++).
FAQ
What is the clang++ command used for?
clang++ is the Clang C++ compiler frontend, part of the LLVM project. It compiles C++ source code to executable binaries or object files. Clang provides fast compilation, expressive diagnostics, and GCC compatibility. It supports modern C++ standards and provides advanced static analysis and tooling integration.
How do I run a basic clang++ example?
Run `clang++ [source.cpp] -o [output]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -o _file_ do in clang++?
Output file name.