Subject: [Boost-bugs] [Boost C++ Libraries] #5710: ptree::sort() compilation error
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-07-18 13:13:26
#5710: ptree::sort() compilation error
-------------------------------------------+--------------------------------
Reporter: bolero.murakami+cpp@⦠| Owner: cornedbee
Type: Bugs | Status: new
Milestone: To Be Determined | Component: property_tree
Version: Boost 1.47.0 | Severity: Problem
Keywords: |
-------------------------------------------+--------------------------------
It is an error code:
{{{
boost::property_tree::ptree pt;
pt.sort();
}}}
Output (VC9):
{{{
c:\program files\microsoft visual studio 9.0\vc\include\utility(103) :
error C2784: 'bool std::operator <(const
std::basic_string<_Elem,_Traits,_Alloc> &,const _Elem *)' : could not
deduce template argument for 'const
std::basic_string<_Elem,_Traits,_Alloc> &' from 'const
boost::property_tree::basic_ptree<Key,Data>'
with
[
Key=std::string,
Data=std::string
]
c:\program files\microsoft visual studio
9.0\vc\include\string(150) : see declaration of 'std::operator <'
c:\program files\microsoft visual studio
9.0\vc\include\functional(143) : see reference to class template
instantiation 'bool std::operator <<const
Key,boost::property_tree::basic_ptree<Key,Data>>(const
std::pair<_Ty1,_Ty2> &,const std::pair<_Ty1,_Ty2> &)' being compiled
with
[
Key=std::string,
Data=std::string,
_Ty1=const std::string,
_Ty2=boost::property_tree::basic_ptree<std::string,std::string>
]
c:\program files\microsoft visual studio
9.0\vc\include\functional(142): while compiling class template member
function 'bool std::less<_Ty>::operator ()(const _Ty &,const _Ty &) const'
being compiled
with
[
_Ty=std::pair<const
std::string,boost::property_tree::basic_ptree<std::string,std::string>>
]
...
}}}
No-argument ptree::sort() in the element less<pair<const string, ptree> >
to be compared by.
However, this comparison operators are not defined.ãTherefore be a
compilation error.
I think, the no-argument ptree::sort() should implemented by a comparison
of key strings.
-- Ticket URL: <https://svn.boost.org/trac/boost/ticket/5710> Boost C++ Libraries <http://www.boost.org/> Boost provides free peer-reviewed portable C++ source libraries.
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