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Add yysyntax_error to data/yacc.c.

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Paul Eggert
2005-09-20 06:07:07 +00:00
parent b4c1f9d2b6
commit a702593e05
1 changed files with 14 additions and 0 deletions
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@@ -1,5 +1,19 @@
2005-09-19 Paul Eggert <eggert@cs.ucla.edu>
* data/yacc.c (YYSIZE_MAXIMUM): New macro.
(YYSTACK_ALLOC_MAXIMUM): Use it.
(yysyntax_error): New function.
(yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
multiple syntax errors are reported, and alloca is being used.
Instead, reallocate buffers twice as big each time, so that
we waste at most half the allocated memory. Start with a small
(128-byte) buffer that will suffice in most cases anyway.
Use yysyntax_error to do most of the work.
* doc/bison.texinfo (Error Reporting, Table of Symbols):
yynerrs is the number of errors reported, not the number of
errors encountered.
* tests/glr-regression.at (Duplicated user destructor for lookahead):
Mark it as expected to fail.
Cast result of malloc; problem reported by twlevo@xs4all.nl.