Difference between revisions of "User:Stefano CiscoSystems/Compiling Issues with Vista and MSVS2008"
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Revision as of 08:54, 11 October 2007
could not deduce template argument from 'LLMessageThrottleEntry' in llmessagethrottle.cpp
- [VS9PATH]\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::deque<_Ty,_Alloc> &,const std::deque<_Ty,_Alloc> &)' : could not deduce template argument for 'const std::deque<_Ty,_Alloc> &' from 'LLMessageThrottleEntry'
- [VS9PATH]\vc\include\deque(1341) : see declaration of 'std::operator =='
- [VS9PATH]\vc\include\algorithm(435) : see reference to function template instantiation '_FwdIt1 std::_Search_n<_FwdIt1,_Diff2,_Ty,bool(__cdecl *)(LLMessageThrottleEntry,LLMessageThrottleEntry)>(_FwdIt1,_FwdIt1,_Diff2,const _Ty &,_Pr,std::random_access_iterator_tag)' being compiled
The first error is related to the search_n for the LLMessageThrottleEntry class on line 113 of \indra\llmessage\llmessagethrottle.cpp.
The error happens in [yourpath]\Visual Studio 9.0\vc\include\algorithm, on line 406 (excerpt follows)
template<class _FwdIt1,
class _Diff2,
class _Ty,
class _Pr> inline
_FwdIt1 _Search_n(_FwdIt1 _First1, _FwdIt1 _Last1,
_Diff2 _Count, const _Ty& _Val, _Pr _Pred, random_access_iterator_tag)
{ // find first _Count * _Val satisfying _Pred, random-access iterators
_DEBUG_RANGE(_First1, _Last1);
_DEBUG_POINTER(_Pred);
if (_Count <= 0)
return (_First1);
_FwdIt1 _Oldfirst1 = _First1;
for (; _Count <= _Last1 - _Oldfirst1; )
{ // enough room, look for a match
if (_Pred(*_First1, _Val))
{ // found part of possible match, check it out
_Diff2 _Count1 = _Count;
_FwdIt1 _Mid1 = _First1;
406: for (; _Oldfirst1 != _First1 && _First1[-1] == _Val; --_First1)
--_Count1; // back up over any skipped prefix
if (_Count1 <= _Last1 - _Mid1)
for (; ; ) // enough left, test suffix
if (--_Count1 == 0)
return (_First1); // found rest of match, report it
else if (!_Pred(*++_Mid1, _Val))
break; // short match not at end
_Oldfirst1 = ++_Mid1; // failed match, take small jump
_First1 = _Oldfirst1;
}
else
{ // no match, take big jump and back up as needed
_Oldfirst1 = _First1 + 1;
_First1 += _Count;
}
}
return (_Last1);
}
So the problem seems to be the operator == in the equality:
_First1[-1] == _Val;
coming from the search_n operation.
They both evaluate to a
const std::deque<_Ty,_Alloc> &
which types are ambiguous for the compiler.
Here is the exact copy of the full compilation error:
1>------ Build started: Project: llmessage, Configuration: Debug Win32 ------ 1>Compiling... 1>llmessagethrottle.cpp 1>c:\sources\secondlife\lindenlabclient\indra\llmessage\llmessagethrottle.cpp(134) : warning C4189: 'message_list' : local variable is initialized but not referenced 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::deque<_Ty,_Alloc> &,const std::deque<_Ty,_Alloc> &)' : could not deduce template argument for 'const std::deque<_Ty,_Alloc> &' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\deque(1341) : see declaration of 'std::operator ==' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(435) : see reference to function template instantiation '_FwdIt1 std::_Search_n<_FwdIt1,_Diff2,_Ty,bool(__cdecl *)(LLMessageThrottleEntry,LLMessageThrottleEntry)>(_FwdIt1,_FwdIt1,_Diff2,const _Ty &,_Pr,std::random_access_iterator_tag)' being compiled 1> with 1> [ 1> _FwdIt1=LLMessageThrottle::message_list_iterator_t, 1> _Diff2=int, 1> _Ty=LLMessageThrottleEntry, 1> _Pr=bool (__cdecl *)(LLMessageThrottleEntry,LLMessageThrottleEntry) 1> ] 1> c:\sources\secondlife\lindenlabclient\indra\llmessage\llmessagethrottle.cpp(117) : see reference to function template instantiation '_FwdIt1 std::search_n<LLMessageThrottle::message_list_iterator_t,int,LLMessageThrottleEntry,bool(__cdecl *)(LLMessageThrottleEntry,LLMessageThrottleEntry)>(_FwdIt1,_FwdIt1,_Diff2,const _Ty &,_Pr)' being compiled 1> with 1> [ 1> _FwdIt1=LLMessageThrottle::message_list_iterator_t, 1> _Diff2=int, 1> _Ty=LLMessageThrottleEntry, 1> _Pr=bool (__cdecl *)(LLMessageThrottleEntry,LLMessageThrottleEntry) 1> ] 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::list<_Ty,_Ax> &,const std::list<_Ty,_Ax> &)' : could not deduce template argument for 'const std::list<_Ty,_Ax> &' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\list(1299) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::_Tree<_Traits> &,const std::_Tree<_Traits> &)' : could not deduce template argument for 'const std::_Tree<_Traits> &' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\xtree(1459) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : 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 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\string(90) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const _Elem *,const std::basic_string<_Elem,_Traits,_Alloc> &)' : could not deduce template argument for 'const _Elem *' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\string(80) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::basic_string<_Elem,_Traits,_Alloc> &,const std::basic_string<_Elem,_Traits,_Alloc> &)' : could not deduce template argument for 'const std::basic_string<_Elem,_Traits,_Alloc> &' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\string(70) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::vector<_Ty,_Alloc> &,const std::vector<_Ty,_Alloc> &)' : could not deduce template argument for 'const std::vector<_Ty,_Alloc> &' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\vector(1309) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::istream_iterator<_Ty,_Elem,_Traits,_Diff> &,const std::istream_iterator<_Ty,_Elem,_Traits,_Diff> &)' : could not deduce template argument for 'const std::istream_iterator<_Ty,_Elem,_Traits,_Diff> &' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\iterator(266) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::istreambuf_iterator<_Elem,_Traits> &,const std::istreambuf_iterator<_Elem,_Traits> &)' : could not deduce template argument for 'const std::istreambuf_iterator<_Elem,_Traits> &' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\streambuf(548) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::allocator<_Ty> &,const std::allocator<_Other> &) throw()' : could not deduce template argument for 'const std::allocator<_Ty> &' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\xmemory(173) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::reverse_iterator<_RanIt> &,const std::reverse_iterator<_RanIt2> &)' : could not deduce template argument for 'const std::reverse_iterator<_RanIt> &' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\xutility(2193) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::_Revranit<_RanIt,_Base> &,const std::_Revranit<_RanIt2,_Base2> &)' : could not deduce template argument for 'const std::_Revranit<_RanIt,_Base> &' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\xutility(2007) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2784: 'bool std::operator ==(const std::pair<_Ty1,_Ty2> &,const std::pair<_Ty1,_Ty2> &)' : could not deduce template argument for 'const std::pair<_Ty1,_Ty2> &' from 'LLMessageThrottleEntry' 1> c:\program files\development\microsoft visual studio 9.0\vc\include\utility(68) : see declaration of 'std::operator ==' 1>c:\program files\development\microsoft visual studio 9.0\vc\include\algorithm(406) : error C2676: binary '==' : 'LLMessageThrottleEntry' does not define this operator or a conversion to a type acceptable to the predefined operator 1>Build log was saved at "file://c:\Sources\SecondLife\LindenLabClient\indra\llmessage\Debug\BuildLog.htm" 1>llmessage - 14 error(s), 1 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
And this is the content of the file llmessagethrottle.cpp that i am using:
/**
* @file llmessagethrottle.cpp
* @brief LLMessageThrottle class used for throttling messages.
*
* Copyright (c) 2004-2007, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlife.com/developers/opensource/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlife.com/developers/opensource/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
*/
#include "linden_common.h"
#include "llhash.h"
#include "llmessagethrottle.h"
#include "llframetimer.h"
// This is used for the stl search_n function.
bool eq_message_throttle_entry(LLMessageThrottleEntry a, LLMessageThrottleEntry b)
{ return a.getHash() == b.getHash(); }
const U64 SEC_TO_USEC = 1000000;
// How long (in microseconds) each type of message stays in its throttle list.
const U64 MAX_MESSAGE_AGE[MTC_EOF] =
{
10 * SEC_TO_USEC, // MTC_VIEWER_ALERT
10 * SEC_TO_USEC // MTC_AGENT_ALERT
};
LLMessageThrottle::LLMessageThrottle()
{
}
LLMessageThrottle::~LLMessageThrottle()
{
}
void LLMessageThrottle::pruneEntries()
{
// Go through each message category, and prune entries older than max age.
S32 cat;
for (cat = 0; cat < MTC_EOF; cat++)
{
message_list_t* message_list = &(mMessageList[cat]);
// Use a reverse iterator, since entries on the back will be the oldest.
message_list_reverse_iterator_t r_iterator = message_list->rbegin();
message_list_reverse_iterator_t r_last = message_list->rend();
// Look for the first entry younger than the maximum age.
F32 max_age = (F32)MAX_MESSAGE_AGE[cat];
BOOL found = FALSE;
while (r_iterator != r_last && !found)
{
if ( LLFrameTimer::getTotalTime() - (*r_iterator).getEntryTime() < max_age )
{
// We found a young enough entry.
found = TRUE;
// Did we find at least one entry to remove?
if (r_iterator != message_list->rbegin())
{
// Yes, remove it.
message_list->erase(r_iterator.base(), message_list->end());
}
}
else
{
r_iterator++;
}
}
// If we didn't find any entries young enough to keep, remove them all.
if (!found)
{
message_list->clear();
}
}
}
BOOL LLMessageThrottle::addViewerAlert(const LLUUID& to, const char* mesg)
{
message_list_t* message_list = &(mMessageList[MTC_VIEWER_ALERT]);
// Concatenate from,to,mesg into one string.
std::ostringstream full_mesg;
full_mesg << to << mesg;
// Create an entry for this message.
size_t hash = llhash<const char*> (full_mesg.str().c_str());
LLMessageThrottleEntry entry(hash, LLFrameTimer::getTotalTime());
// Check if this message is already in the list.
/*
* Stefano: i did try using this but did not help:
<message_list_iterator_t,int,LLMessageThrottleEntry,bool (__cdecl *)(LLMessageThrottleEntry,LLMessageThrottleEntry)>
*/
message_list_iterator_t found = std::search_n(message_list->begin(), message_list->end(), 1, entry, eq_message_throttle_entry);
if (found == message_list->end())
{
// This message was not found. Add it to the list.
message_list->push_front(entry);
return TRUE;
}
else
{
// This message was already in the list.
return FALSE;
}
}
BOOL LLMessageThrottle::addAgentAlert(const LLUUID& agent, const LLUUID& task, const char* mesg)
{
message_list_t* message_list = &(mMessageList[MTC_AGENT_ALERT]);
// Concatenate from,to,mesg into one string.
std::ostringstream full_mesg;
full_mesg << agent << task << mesg;
// Create an entry for this message.
size_t hash = llhash<const char*> (full_mesg.str().c_str());
LLMessageThrottleEntry entry(hash, LLFrameTimer::getTotalTime());
// Check if this message is already in the list.
/* stefano i commented the following so to get one only error while debugging */
/* message_list_iterator_t found = std::search_n(message_list->begin(), message_list->end(),
1, entry, eq_message_throttle_entry);
if (found == message_list->end())
{
// This message was not found. Add it to the list.
message_list->push_front(entry);
return TRUE;
}
else
{
// This message was already in the list.
return FALSE;
}
*/
}