The first example is that of a simple double-precision reverse polish notation calculator (a calculator using postfix operators). This example provides a good starting point, since operator precedence is not an issue. The second example will illustrate how operator precedence is handled.
The source code for this calculator is named `rpcalc.y'. The `.y' extension is a convention used for Bison input files.
Go to the first, previous, next, last section, table of contents.