www.delorie.com/gnu/docs/bison/bison_27.html

search

	Buy the book!

Bison 1.875

2.1.7 Compiling the Parser File

Here is how to compile and run the parser file:

# List files in current directory. $ ls rpcalc.tab.c rpcalc.y # Compile the Bison parser. # `-lm' tells compiler to search math library for pow. $ cc -lm -o rpcalc rpcalc.tab.c # List files again. $ ls rpcalc rpcalc.tab.c rpcalc.y

The file `rpcalc' now contains the executable code. Here is an example session using rpcalc.

$ rpcalc 4 9 + 13 3 7 + 3 4 5 *+- -13 3 7 + 3 4 5 * + - n Note the unary minus, `n' 13 5 6 / 4 n + -3.166666667 3 4 ^ Exponentiation 81 ^D End-of-file indicator $