Account Balance Example

This sample program illustrates splitting declarations from definitions, especially for classes and named constants.

• dollar.h
  • Note the use of extern const to declare CENTS_PER_DOLLAR. It has just one definition in dollar.cpp but the declaration allows it to be used in any file that includes dollar.h.
• dollar.cpp
• balance.cpp

To build, download makefile and type

        make

It will also build in the old-fashioned way

        g++ *.cpp

but the nice thing about the makefile is that if you edit one of the sources the minimum number of files are recompiled.