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c++: use resize to shrink a vector

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Suggested by Adrian Vogelsgesang.
https://lists.gnu.org/archive/html/bison-patches/2019-08/msg00009.html

* data/skeletons/lalr1.cc (yy_lac_check_): here.
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Akim Demaille committed 2019-08-18 06:54:56 -05:00
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commit d7cf3f5b18
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data/skeletons/lalr1.cc
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@@ -1182,8 +1182,7 @@ b4_dollar_popdef])[]dnl
size_t lac_size = yylac_stack_.size ();
if (yylen < lac_size)
{
for (size_t i = 0; i < yylen; ++i)
yylac_stack_.pop_back ();
yylac_stack_.resize (lac_size - yylen);
yylen = 0;
}
else if (lac_size)