g++ 和 gcc 有什么区别? [英] What is the difference between g++ and gcc?
问题描述
g++ 和 gcc 有什么区别?一般的c++开发应该使用其中的哪一个?
What is the difference between g++ and gcc? Which one of them should be used for general c++ development?
推荐答案
gcc
和 g++
是 GNU Compiler Collection 的编译器驱动程序(曾几何时只是 GNU C 编译器).
gcc
and g++
are compiler-drivers of the GNU Compiler Collection (which was once upon a time just the GNU C Compiler).
即使它们会根据文件类型自动确定要调用的后端 (cc1
cc1plus
...),除非被 -x 语言覆盖
,它们有一些区别.
Even though they automatically determine which backends (cc1
cc1plus
...) to call depending on the file-type, unless overridden with -x language
, they have some differences.
它们的默认值可能最重要的区别是它们自动链接到哪些库.
The probably most important difference in their defaults is which libraries they link against automatically.
根据 GCC 的在线文档 链接选项 和 g++是如何调用的,g++
等价于gcc -xc++ -lstdc++ -shared-libgcc
(第一个是编译器选项,第二个是链接器选项).这可以通过使用 -v
选项运行两者来检查(它显示正在运行的后端工具链命令).
According to GCC's online documentation link options and how g++ is invoked, g++
is equivalent to gcc -xc++ -lstdc++ -shared-libgcc
(the 1st is a compiler option, the 2nd two are linker options). This can be checked by running both with the -v
option (it displays the backend toolchain commands being run).
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