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add explicit bool operator to negate to silence msvc warnings - closes #1307

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This commit is contained in:
Dane Springmeyer 2012-07-12 16:38:13 -07:00
parent d828377c7c
commit 02644aeed1
1 changed files with 5 additions and 0 deletions
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5
include/mapnik/value.hpp
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@ -577,6 +577,11 @@ struct negate : public boost::static_visitor<V>
return val; return val;
} }
value_type operator() (bool val) const
{
return val ? -1 : 0;
}
value_type operator() (UnicodeString const& ustr) const value_type operator() (UnicodeString const& ustr) const
{ {
UnicodeString inplace(ustr); UnicodeString inplace(ustr);