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
clang [program.c] -o [program]
Compile
clang -O3 [program.c] -o [program]
Compile
clang -g [program.c] -o [program]
Enable
clang -Wall -Wextra [program.c] -o [program]
Compile
clang++ [program.cpp] -o [program]
说明
clang is a C, C++, and Objective-C compiler based on the LLVM compiler infrastructure. It provides fast compilation, excellent diagnostics with clear error messages, and is designed as a drop-in replacement for GCC on most platforms. Clang is known for its expressive error messages that include source highlighting, fix-it hints, and template backtrace improvements over GCC. Its modular library-based architecture enables reuse in tools like clang-format, clang-tidy, and clangd. The compiler supports modern language standards (C17, C++20, C++23), sanitizers for detecting memory errors and undefined behavior at runtime, and extensive static analysis capabilities. It is the default compiler on macOS and FreeBSD and widely used on Linux.
参数
- -o _file_
- Output file name
- -c
- Compile without linking
- -g
- Generate debug information
- -O_level_
- Optimization (0, 1, 2, 3, fast, s, z)
- -std=_standard_
- Language standard (c11, c17, c++17, c++20)
- -Wall
- Enable common warnings
- -Wextra
- Enable extra warnings
- -Werror
- Treat warnings as errors
- -I _dir_
- Add include directory
- -L _dir_
- Add library directory
- -l _lib_
- Link library
- -fsanitize=_type_
- Enable sanitizer (address, thread, memory, undefined)
FAQ
What is the clang command used for?
clang is a C, C++, and Objective-C compiler based on the LLVM compiler infrastructure. It provides fast compilation, excellent diagnostics with clear error messages, and is designed as a drop-in replacement for GCC on most platforms. Clang is known for its expressive error messages that include source highlighting, fix-it hints, and template backtrace improvements over GCC. Its modular library-based architecture enables reuse in tools like clang-format, clang-tidy, and clangd. The compiler supports modern language standards (C17, C++20, C++23), sanitizers for detecting memory errors and undefined behavior at runtime, and extensive static analysis capabilities. It is the default compiler on macOS and FreeBSD and widely used on Linux.
How do I run a basic clang example?
Run `clang [program.c] -o [program]` 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