Cisco Cisco WAP561 Wireless-N Dual Radio Selectable Band Access Point 릴리즈 노트

78-21255-01 Open Source Used In WAP5xx 1.0.4.x

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DEMONSTRATION CALCULATOR PROGRAM

This is a simple program, meant only to show one way to use GMP with yacc

and lex to make a calculator. Usage and comments on the implementation can

be found in calc.y.

Within a GMP build tree, the generated Makefile can be used to build the

program,

make calc

(or on a DOS system, "make calc.exe").

Elsewhere, once GMP has been installed, the program can be compiled with for

instance

gcc calc.c calclex.c -lgmp -o calc

Or if GNU readline is used then

gcc calc.c calclex.c calcread.c -lgmp -lreadline -o calc

(again, on a DOS system "-o calc.exe").

Readline support can be enabled or disabled in calc-config.h. That file is

created by the GMP ./configure based on the --with-readline option. The

default is --with-readline=detect, which means to use readline if available.

"yes" can be used to force it to be used, or "no" to not use it.

The supplied calc.c was generated by GNU bison, but a standard yacc should

work too.

The supplied calclex.c was generated by GNU flex, but a standard lex should

work too. The readline support may or may not work with a standard lex (see

comments with input() in calcread.c). Note also that a standard lex will

require its library "-ll" on the compile command line. "./configure" sets

this up in the GMP build tree Makefile.

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