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？哪些应该用于一般的c ++开发？

解决方案

gcc 和Gnu Compiler Collection '的编译器驱动程序（曾经是'Gnu C em编译器'的编译器驱动程序，即使它们自动确定哪些后端（ cc1 cc1plus '）。 / code> ...）根据文件类型调用，除非被 -x语言覆盖，它们有一些区别。

它们的默认值可能最重要的区别是它们自动链接哪些库。

根据GCC在线文档链接选项和 g ++如何被调用， g ++ 相当于 gcc -xc ++ - lstdc ++ -shared-libgcc （1s t是一个编译器选项，第二个是链接器选项）。这可以通过运行 -v 选项来检查（它显示正在运行的后端工具链命令）。

What is the difference between g++ and gcc? Which ones should be used for general c++ development?

解决方案

gcc and g++ are compiler-drivers of the 'Gnu Compiler Collection' (which was once upon a time just the 'Gnu C Compiler').

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.

The probably most important difference in their defaults is which libraries they link against automatically.

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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