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Fix precedence for end token.

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Since Bison 2.3b, which restored the ability of precedence
directives to assign user token numbers, doing so for user token
number 0 has produced an assertion failure.
* NEWS (2.5): Document fix.
* src/symtab.c (symbol_user_token_number_set): In the case of the
end token, don't decrement ntokens if it was never incremented.
* tests/regression.at (Token number in precedence declaration):
Extend.
This commit is contained in:
Joel E. Denny
2011-05-01 21:53:35 -04:00
parent 441735026b
commit 9d6af15318
4 changed files with 32 additions and 5 deletions
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@@ -1,3 +1,15 @@
2011-05-01 Joel E. Denny <joeldenny@joeldenny.org>
Fix precedence for end token.
Since Bison 2.3b, which restored the ability of precedence
directives to assign user token numbers, doing so for user token
number 0 has produced an assertion failure.
* NEWS (2.5): Document fix.
* src/symtab.c (symbol_user_token_number_set): In the case of the
end token, don't decrement ntokens if it was never incremented.
* tests/regression.at (Token number in precedence declaration):
Extend.
2011-05-01 Joel E. Denny <joeldenny@joeldenny.org>
Prepare for 2.5 release.