Files
bison/examples
Akim Demaille eff6739124 c++: workaround portability issue
On some systems (x86_64-pc-solaris2.11), with Developer Studio 12.5's
CC, we get:

    ".../include/CC/Cstd/vector.cc", line 127: Error: Cannot assign const yy::parser::stack_symbol_type to yy::parser::stack_symbol_type without "yy::parser::stack_symbol_type::operator=(const yy::parser::stack_symbol_type&)";.
    ".../include/CC/Cstd/vector", line 475:     Where: While instantiating "std::vector<yy::parser::stack_symbol_type>::__insert_aux(yy::parser::stack_symbol_type*, const yy::parser::stack_symbol_type&)".
    ".../include/CC/Cstd/vector", line 475:     Where: Instantiated from non-template code.
    1 Error(s) detected.

Don't expect __cplusplus to be always defined.  If it's not, consider
this is C++98.

Reported by Nelson H. F. Beebe.

* data/c++.m4, data/lalr1.cc, examples/c++/variant.yy, tests/local.at,
* tests/testsuite.h:
An undefined __cplusplus means pre C++11.
2018-11-04 08:00:01 +01:00
..
2018-11-04 08:00:01 +01:00
2018-10-26 08:40:07 +02:00
2018-10-26 07:42:28 +02:00
2018-10-26 08:40:07 +02:00

This directory contains examples of Bison grammar files.

Most of them come from the documentation, which should be installed together
with Bison.  The URLs are provided for convenience.


* Examples in C

** rpcalc - Reverse Polish Notation Calculator
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.

Extracted from the documentation: "Reverse Polish Notation Calculator"
https://www.gnu.org/software/bison/manual/html_node/RPN-Calc.html

** mfcalc - Multi-Function Calculator
A more complete C example: a multi-function calculator.

Extracted from the documentation: "Multi-Function Calculator: mfcalc".
https://www.gnu.org/software/bison/manual/html_node/Multi_002dfunction-Calc.html



* Examples in C++

** c++ - A directory of simple C++ examples

** calc++ - A Complete C++ Example
A fully featured C++ version of the canonical example for parsers: a
calculator.  Also uses Flex for the scanner.

Extracted from the documentation: "A Complete C++ Example".
https://www.gnu.org/software/bison/manual/html_node/A-Complete-C_002b_002b-Example.html


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Local Variables:
mode: outline
fill-column: 76
ispell-dictionary: "american"
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Copyright (C) 2018 Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with no
Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
Texts.  A copy of the license is included in the "GNU Free
Documentation License" file as part of this distribution.

# LocalWords:  mfcalc calc parsers yy