1 Copyright 2001 Free Software Foundation, Inc.
3 This file is part of the GNU MP Library.
5 This program is free software; you can redistribute it and/or modify it under
6 the terms of the GNU General Public License as published by the Free Software
7 Foundation; either version 3 of the License, or (at your option) any later
10 This program is distributed in the hope that it will be useful, but WITHOUT ANY
11 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12 PARTICULAR PURPOSE. See the GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License along with
15 this program. If not, see http://www.gnu.org/licenses/.
20 DEMONSTRATION CALCULATOR PROGRAM
23 This is a simple program, meant only to show one way to use GMP with yacc
24 and lex to make a calculator. Usage and comments on the implementation can
27 Within a GMP build tree, the generated Makefile can be used to build the
32 (or on a DOS system, "make calc.exe").
34 Elsewhere, once GMP has been installed, the program can be compiled with for
37 gcc calc.c calclex.c -lgmp -o calc
39 Or if GNU readline is used then
41 gcc calc.c calclex.c calcread.c -lgmp -lreadline -o calc
43 (again, on a DOS system "-o calc.exe").
45 Readline support can be enabled or disabled in calc-config.h. That file is
46 created by the GMP ./configure based on the --with-readline option. The
47 default is --with-readline=detect, which means to use readline if available.
48 "yes" can be used to force it to be used, or "no" to not use it.
50 The supplied calc.c was generated by GNU bison, but a standard yacc should
53 The supplied calclex.c was generated by GNU flex, but a standard lex should
54 work too. The readline support may or may not work with a standard lex (see
55 comments with input() in calcread.c). Note also that a standard lex will
56 require its library "-ll" on the compile command line. "./configure" sets
57 this up in the GMP build tree Makefile.