Compiling using GNU C++ Compiler (egcs, djgpp, ...)

Compilers Compiling using GNU C++ Compiler

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Compiling

This compiler can perform preprocessing, compilation, assembly and linking of a project from a single call to g++. Its format is:

g++ options_and_filenames

where options_and_filenames is a sequence of options and filenames that can be mixed in the command line.

The most common way of calling g++ to compile a single source file in C++ is:

g++ sourcefile -o execfile

where sourcefile is the C++ source file to compile and execfile is the name of the output file, generally the executable file, which must always be preceded by the -o option.

The type of file assumed when specifying a sourcefile depends on its extension, that must be: .C, .cc or .cxx for C++ source files. Additionally, the most recent versions of GNU C++ Compiler assumes also .cpp and .c++ extensions for C++ source files. .ii files are considered preprocessed C++ files.

You may also specify that a file is a C++ source file by preceding its name with specifier -x c++. For example, if we want to compile a source file with no-extension called mysource we may call g++ thus:

g++ -x c++ mysource -o myexec

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