panthema / 2008 / 1023-Flex-Bison-C++-Example-0.1.3
Funny Drawing with 'C++' 'FLEX' and a Bison

Published Flex Bison C++ Example 0.1.3

Posted on 2008-10-23 11:25 by Timo Bingmann at Permlink with 0 Comments. Tags: #flex-bison-cpp-example #c++ #code-example #parsing

Released yet another updated source code package for Flex Bison C++ Example. The example source code is released into the public domain or, at your option, under the Do What The Fuck You Want To Public License (WTFPL).

This bugfix release solves a subtle, severe bug, which rendered the template code useless. Even the example exprtext program segfaulted with any expression.

Corrected a very subtle bug with the newly introduced virtual yywrap() function in the FlexLexer class. Depending on how the header was included, the class contained the virtual yywrap() function or not. These differing class declarations lead to very strange NULL pointer exceptions, because the different compiled objects assume different class memory layouts. Ultimately the exprtest program always segfaulted.

For more information and the download package see the Flex Bison C++ Example web page.

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