(gcc.info)G++ and GCC
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Compile C, C++, or Objective C
The C, C++, and Objective C versions of the compiler are integrated;
the GNU C compiler can compile programs written in C, C++, or Objective
"GCC" is a common shorthand term for the GNU C compiler. This is
both the most general name for the compiler, and the name used when the
emphasis is on compiling C programs.
When referring to C++ compilation, it is usual to call the compiler
"G++". Since there is only one compiler, it is also accurate to call
it "GCC" no matter what the language context; however, the term "G++"
is more useful when the emphasis is on compiling C++ programs.
G++ is a *compiler*, not merely a preprocessor. G++ builds object
code directly from your C++ program source. There is no intermediate C
version of the program. (By contrast, for example, some other
implementations use a program that generates a C program from your C++
source.) Avoiding an intermediate C representation of the program means
that you get better object code, and better debugging information. The
GNU debugger, GDB, works with this information in the object code to
give you comprehensive C++ source-level editing capabilities (Note: C
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