Comparison and difference between gcc and g++ in C and C++

Comparison and difference between gcc and g++ in C/C++

1. The difference between

1. gcc is the c compiler in GCC

g++ is the c++ compiler in GCC

2. For files with the suffix.c, gcc is treated as c, while g++ is treated as c++

For files with a.cpp suffix, both are treated as.cpp files

3. During the build phase, g++ will automatically link to the STL library, while gcc must add one parameter -lstdc++

4. When gcc compiles c files, there are relatively few predefined macros available

2. A small error

1.gcc can only be used to compile.c files, and g++ can only be used to compile.cpp files

A: either is fine. For files with the suffix.c, gcc is treated as c, while g++ is treated as c++

For files with a.cpp suffix, both are treated as.cpp files

2. Compile only gcc, link only g++

A: no. Both gcc and g++ are used in the build phase, g++ is used in the link phase, and g++ is used in the build phase with one parameter -lstdc++.

3.gcc does not define -cplusplus macros, while g++ does

A: wrong. This macro simply indicates whether the compiler interprets the code as c or c++.

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