16.3 Introduction to C++ on UNIX

CC (upper case), g++ and gcc are all C++ compiler commands on the Fermilab-supported UNIX systems that provide C++ (see section 16.1 for a brief discussion). Just as C++ is a superset of C, the C++ compilers are very similar to C compilers in that their options are usually a superset of C compiler options. The basic compiling information about C in section 16.2.3 is also applicable to C++, with the following exceptions[77]:

• Source filename extension conventions are compiler-dependent. Check the man pages for CC (upper case) to determine the extensions used on your system. Extensions include:

C

(upper case)

c

(lower case)

cxx

cpp

cc

c++

• The C++ compiler is invoked with CC (upper-case), g++ or gcc
• There are additional compiler options specific to C++; see the man pages.

The C++ compiler may not yet be installed on your Fermilab UNIX system.

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