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Based on work by Frank Heckenbach. See http://lists.gnu.org/archive/html/bug-bison/2018-04/msg00000.html and http://lists.gnu.org/archive/html/bug-bison/2018-09/msg00019.html. * data/lalr1.cc (b4_rhs_value): Use YY_MOVE api.rhs.automove is set. * doc/bison.texi (%define Summary): Document api.rhs.automove. * examples/variant-11.yy: Use it. * tests/local.at (AT_AUTOMOVE_IF): New. * tests/c++.at (Variants): Check move semantics.
This directory contains examples of Bison grammar files. * mfcalc A C example of a multi-function calculator. Extracted from the documentation. * calc++ A C++ version of the canonical example for parsers: a calculator. Also uses Flex for the scanner. Extracted from the documentation. * variant.yy A C++ example that uses variants (they allow to use any C++ type as semantic value type) and symbol constructors (they ensure consistency between declared token type and effective semantic value). * variant-11.yy Another C++ example, closely related to the previous one, but exhibiting support for C++11's move semantics. ----- Local Variables: mode: outline fill-column: 76 End: 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