C++ C++；传递比较函子时发生std:：map编译器错误
我在我相信的某个地方做出了一个错误的假设。我假设C++ C++；传递比较函子时发生std:：map编译器错误,c++,compare,functor,stdmap,C++,Compare,Functor,Stdmap,我在我相信的某个地方做出了一个错误的假设。我假设std:：map只在索引中进行比较。然而，它不是试图比较两个uint64s，而是试图将其中一个与其他东西进行比较（请参见编译器错误） struct标记{}； typedef句柄HPowerType； 类PowerTypeMgr { 结构PowerType{/**stuff**/}； 结构uint64_以下 { 布尔运算符（）（常数uint64&l、常数uint64&r）常数 { 返回（（l原因：无法从'PowerTypeMgr:：PowerType
std:：mapuint64struct标记{}；
typedef句柄HPowerType；
类PowerTypeMgr
{
结构PowerType{/**stuff**/}；
结构uint64_以下
{
布尔运算符（）（常数uint64&l、常数uint64&r）常数
{
返回（（l原因：无法从'PowerTypeMgr:：PowerType*const'转换为'const'
uint64'
2> 没有可以进行此转换的上下文
2> c:\cry\u v340\u 3696\code\sdks\stlport\stlport\stl\\u tree.h（570）：参见
对函数模板实例化“bool”的引用
stlpd_std:：priv:：_DbgCompare:：operator（）（const _Kp1&，const
_正在编译Kp2&）const
2> 与
2> [
2> \u Key=unsigned\u int64，
2> \u Compare=PowerTypeMgr:：uint64\u less，
2> _KT=PowerTypeMgr:：PowerType*，
2> _Kp1=无符号uu int64，
2> \u Kp2=PowerTypeMgr:：PowerType*
2> ]
class PowerTypeMgr
{
public:
virtual ~PowerTypeMgr();
PowerTypeMgr& Instance()
{
static PowerTypeMgr Obj;
return Obj;
}
HPowerType StorePowerType (
uint64 EMP, uint64 ESP, int wC, int chiC, int hC, const char* MPName,
const char* SPName, bool isC, bool unlock,const char* PN,const char* PC,
const char* FMT
);
void DeletePowerType(HPowerType Hpt); //not needed for powertypes,
//they should always be loaded or unloaded together
uint64 makePowerString(EMainPowers EMP, ESubPowers ESP);
bool IsComboable(HPowerType Hpt) const;
string GetPowerName(HPowerType Hpt) const;
string GetMPEffectName(HPowerType Hpt) const;
string GetSPEffectName(HPowerType Hpt) const;
string GetProjectileClass(HPowerType Hpt) const;
string GetFireModeType(HPowerType Hpt) const;
int GetHealthCost(HPowerType Hpt) const;
int GetCHICost(HPowerType Hpt) const;
int GetWeaponCost(HPowerType Hpt) const;
bool IsUnlocked(HPowerType Hpt) const;
uint64 GetPowerString(HPowerType Hpt) const;
// Only things that may change during the course of game execution //
void StorePowerName(HPowerType Hpt, string pn);
void Unlock(HPowerType Hpt);//, bool L); //true = unlock it
void Lock(HPowerType Hpt);
bool SaveGame(/* GamePak, SaveName*/) {}//TODO
bool LoadGame(/* GamePak, SaveName*/) {}//TODO
private:
struct PowerType
{
uint64 thePower; //64-bit string where uppermost 8 bits is the EMainPower, and lower 56 is ESubPower
EMainPowers mainPower; //currently unused
ESubPowers subPower; //ditto
bool isComboable;
bool isUnlocked;
int weaponCost; //weapon cost (to hold)
int CHIcost; //cost to CHI meter to use it.
int healthCost; //additional healthCost to use it
string powerName;
string MPEffectName;
string SPEffectName;
string projectileClass;
string fireModeType;
//MEMBERS --------------------------------------------------<<<
void Unload();
EMainPowers getMainPower() const;
EMainPowers convertToMainPower(const uint64& bitstring);
ESubPowers getSubPower() const;
ESubPowers convertToSubPower(const uint64& bitstring);
}; //end struct PowerType
//--------------------------------------------------------------------------------------------------------
PowerTypeMgr(); //SINGLETON pattern
typedef std::pair<uint64,HPowerType> PowerMap_Pair;
typedef std::map <uint64,HPowerType> PTHMap;//,int64_less> PTHMap; //,uint64_less> PTHMap; //O(logn) look up bitstr
PTHMap m_PTHMap; //...
typedef std::pair<PTHMap::iterator,bool> indexInsertRC;
typedef HandleMgr <PowerType, HPowerType> PowerHandle;
PowerHandle m_PowerTypeHMgr;
bool inited; //Used in assert & checking if trying to load more than once
int totalPowerTypes;
}; //end PowerTypeMgr
class-PowerTypeMgr
{
公众：
虚拟~PowerTypeMgr（）；
PowerTypeMgr&实例（）
{
静态PowerTypeMgr Obj；
返回Obj；
}
HPowerType存储电源类型（
uint64 EMP、uint64 ESP、int wC、int chiC、int hC、const char*MPName、，
常量字符*SPName，布尔isC，布尔解锁，常量字符*PN，常量字符*PC，
常量字符*FMT
);
void DeletePowerType（HPowerType Hpt）；//PowerType不需要，
//它们应始终一起装载或卸载
uint64 makePowerString（EMainPowers EMP、ESubPowers ESP）；
布尔可编译（HPowerType Hpt）常数；
字符串GetPowerName（HPowerType Hpt）const；
字符串GetMPEffectName（HPowerType Hpt）常量；
字符串GetSPEffectName（HPowerType Hpt）常量；
字符串GetProjectEleClass（HPowerType Hpt）常量；
字符串GetFireModeType（HPowerType Hpt）常量；
int GetHealthCost（HPowerType Hpt）常量；
int GetCHICost（HPowerType Hpt）常量；
int GetWeaponCost（HPowerType Hpt）常数；
布尔未锁定（HPowerType Hpt）常量；
uint64 GetPowerString（HPowerType Hpt）常量；
//只有在游戏执行过程中可能发生变化的事情//
void StorePowerName（HPowerType Hpt，字符串pn）；
无效解锁（HPowerType Hpt）；//，bool）；//true=解锁它
无效锁（HPowerType Hpt）；
bool SaveGame（/*GamePak，SaveName*/）{}//TODO
bool LoadGame（/*GamePak，SaveName*/）{}//TODO
私人：
结构PowerType
{
uint64功率；//64位字符串，其中最高8位为EMainPower，最低56位为ESubPower
EMainPowers mainPower；//当前未使用
ESubPowers次电源；//同上
布尔是可信任的；
布尔解锁；
int武器成本；//武器成本（持有）
int CHIcost；//使用它的成本。
int healthCost；//使用它的额外healthCost
字符串powerName；
字符串名称；
字符串SPEffectName；
弦射影类；
字符串模式类型；
//成员-------------------------------------------PTHMap；//O（logn）查找bitstr
PTHMap m_PTHMap；/。。。
typedef std:：pair indexInsertRC；
typedef HandleMgr PowerHandle；
PowerHandle m_PowerTypeHMgr；
bool inited；//在尝试多次加载时用于断言和检查
整数型；
}；//结束PowerTypeMgr
'2>PowerTypeMgr.cpp
2> c:\cry_v340_3696\code\sdks\stlport\stlport\stl\debug\\ tree.h（62）：错误C2664:'bool stlpd_std:：less:：operator（）（const(const)Tp&，const(Tp&），const)：无法将参数2从'PowerTypeMgr:：PowerType*const'转换为'const uint64&'
2> 与
2> [
2> _Tp=uint64
2> ]
2> 原因：无法从“PowerTypeMgr:：PowerType*const”转换为“const uint64”
2> 没有可以进行此转换的上下文
2> c:\cry\u v340\u 3696\code\sdks\stlport\stlport\stl\\u tree.h（570）：请参阅正在编译的函数模板实例化“bool stlpd\u std:：priv:：_DbgCompare:：operator（）（const(u Kp1&，const)Kp2&）const”
2> 与
2> [
2> \u Key=unsigned\u int64，
2> _Compare=stlpd_std:：less，
2> _KT=PowerTypeMgr:：PowerType*，
2> _Kp1=无符号uu int64，
2> \u Kp2=PowerTypeMgr:：PowerType*
2> ]
2> c:\cry\u v340\u 3696\code\sdks\stlport\stlport\stl\\ tree.h（560）：请参阅正在编译的函数模板实例化“stlpd_std:：priv:：_NonDbg_Rb_tree:：_Base_ptr stlpd_stl:：priv:_NonDbg_Rb_tree:：_M_find（const)KT&）const”
2> 与
2> [
2> \u Key=unsigned\u int64，
2> _Compare=stlpd_std:：priv:：_DbgCompare，
2> _值=stlpd_std:：pair，
2> _KeyOfValue=stlpd_std:：priv:：_选择第一，
2> _Traits=stlpd_std:：priv:_MapTraitsT，
2> _Alloc=stlpd_std:：分配器，
2> _KT=PowerTypeMgr:：PowerType*
2> ]
2> c:\cry\u v340\u 3696\code\sdks\stlport\stlport\stl\debug\_
c:\cry_v340_3696\code\sdks\stlport\stlport\stl\debug\_tree.h(62): error C2664:
'bool PowerTypeMgr::uint64_less::operator ()(const uint64 &,const uint64 &) const' :
cannot convert parameter 2 from 'PowerTypeMgr::PowerType *const ' to 'const uint64&'
2> Reason: cannot convert from 'PowerTypeMgr::PowerType *const ' to 'const
uint64'
2> There is no context in which this conversion is possible
2> c:\cry_v340_3696\code\sdks\stlport\stlport\stl\_tree.h(570) : see
reference to function template instantiation 'bool
stlpd_std::priv::_DbgCompare<_Key,_Compare>::operator ()<_Key,_KT>(const _Kp1 &,const
_Kp2 &) const' being compiled
2> with
2> [
2> _Key=unsigned __int64,
2> _Compare=PowerTypeMgr::uint64_less,
2> _KT=PowerTypeMgr::PowerType *,
2> _Kp1=unsigned __int64,
2> _Kp2=PowerTypeMgr::PowerType *
2> ]
class PowerTypeMgr
{
public:
virtual ~PowerTypeMgr();
PowerTypeMgr& Instance()
{
static PowerTypeMgr Obj;
return Obj;
}
HPowerType StorePowerType (
uint64 EMP, uint64 ESP, int wC, int chiC, int hC, const char* MPName,
const char* SPName, bool isC, bool unlock,const char* PN,const char* PC,
const char* FMT
);
void DeletePowerType(HPowerType Hpt); //not needed for powertypes,
//they should always be loaded or unloaded together
uint64 makePowerString(EMainPowers EMP, ESubPowers ESP);
bool IsComboable(HPowerType Hpt) const;
string GetPowerName(HPowerType Hpt) const;
string GetMPEffectName(HPowerType Hpt) const;
string GetSPEffectName(HPowerType Hpt) const;
string GetProjectileClass(HPowerType Hpt) const;
string GetFireModeType(HPowerType Hpt) const;
int GetHealthCost(HPowerType Hpt) const;
int GetCHICost(HPowerType Hpt) const;
int GetWeaponCost(HPowerType Hpt) const;
bool IsUnlocked(HPowerType Hpt) const;
uint64 GetPowerString(HPowerType Hpt) const;
// Only things that may change during the course of game execution //
void StorePowerName(HPowerType Hpt, string pn);
void Unlock(HPowerType Hpt);//, bool L); //true = unlock it
void Lock(HPowerType Hpt);
bool SaveGame(/* GamePak, SaveName*/) {}//TODO
bool LoadGame(/* GamePak, SaveName*/) {}//TODO
private:
struct PowerType
{
uint64 thePower; //64-bit string where uppermost 8 bits is the EMainPower, and lower 56 is ESubPower
EMainPowers mainPower; //currently unused
ESubPowers subPower; //ditto
bool isComboable;
bool isUnlocked;
int weaponCost; //weapon cost (to hold)
int CHIcost; //cost to CHI meter to use it.
int healthCost; //additional healthCost to use it
string powerName;
string MPEffectName;
string SPEffectName;
string projectileClass;
string fireModeType;
//MEMBERS --------------------------------------------------<<<
void Unload();
EMainPowers getMainPower() const;
EMainPowers convertToMainPower(const uint64& bitstring);
ESubPowers getSubPower() const;
ESubPowers convertToSubPower(const uint64& bitstring);
}; //end struct PowerType
//--------------------------------------------------------------------------------------------------------
PowerTypeMgr(); //SINGLETON pattern
typedef std::pair<uint64,HPowerType> PowerMap_Pair;
typedef std::map <uint64,HPowerType> PTHMap;//,int64_less> PTHMap; //,uint64_less> PTHMap; //O(logn) look up bitstr
PTHMap m_PTHMap; //...
typedef std::pair<PTHMap::iterator,bool> indexInsertRC;
typedef HandleMgr <PowerType, HPowerType> PowerHandle;
PowerHandle m_PowerTypeHMgr;
bool inited; //Used in assert & checking if trying to load more than once
int totalPowerTypes;
}; //end PowerTypeMgr
'2> PowerTypeMgr.cpp
2>c:\cry_v340_3696\code\sdks\stlport\stlport\stl\debug\_tree.h(62): error C2664: 'bool stlpd_std::less<_Tp>::operator ()(const _Tp &,const _Tp &) const' : cannot convert parameter 2 from 'PowerTypeMgr::PowerType *const ' to 'const uint64 &'
2> with
2> [
2> _Tp=uint64
2> ]
2> Reason: cannot convert from 'PowerTypeMgr::PowerType *const ' to 'const uint64'
2> There is no context in which this conversion is possible
2> c:\cry_v340_3696\code\sdks\stlport\stlport\stl\_tree.h(570) : see reference to function template instantiation 'bool stlpd_std::priv::_DbgCompare<_Key,_Compare>::operator ()<_Key,_KT>(const _Kp1 &,const _Kp2 &) const' being compiled
2> with
2> [
2> _Key=unsigned __int64,
2> _Compare=stlpd_std::less<uint64>,
2> _KT=PowerTypeMgr::PowerType *,
2> _Kp1=unsigned __int64,
2> _Kp2=PowerTypeMgr::PowerType *
2> ]
2> c:\cry_v340_3696\code\sdks\stlport\stlport\stl\_tree.h(560) : see reference to function template instantiation 'stlpd_std::priv::_NonDbg_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc>::_Base_ptr stlpd_std::priv::_NonDbg_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc>::_M_find<_KT>(const _KT &) const' being compiled
2> with
2> [
2> _Key=unsigned __int64,
2> _Compare=stlpd_std::priv::_DbgCompare<unsigned __int64,stlpd_std::less<uint64>>,
2> _Value=stlpd_std::pair<const uint64,HPowerType>,
2> _KeyOfValue=stlpd_std::priv::_Select1st<stlpd_std::pair<const uint64,HPowerType>>,
2> _Traits=stlpd_std::priv::_MapTraitsT<stlpd_std::pair<const uint64,HPowerType>>,
2> _Alloc=stlpd_std::allocator<stlpd_std::pair<const uint64,HPowerType>>,
2> _KT=PowerTypeMgr::PowerType *
2> ]
2> c:\cry_v340_3696\code\sdks\stlport\stlport\stl\debug\_tree.h(178) : see
reference to function template instantiation 'stlpd_std::priv::_Rb_tree_iterator<_Value,_Traits> stlpd_std::priv::_NonDbg_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc>::find<_KT>(const _KT &)' being compiled
2> with
2> [
2> _Value=stlpd_std::pair<const uint64,HPowerType>,
2> _Traits=stlpd_std::priv::_MapTraitsT<stlpd_std::pair<const uint64,HPowerType>>,
2> _Key=unsigned __int64,
2> _Compare=stlpd_std::priv::_DbgCompare<unsigned __int64,stlpd_std::less<uint64>>,
2> _KeyOfValue=stlpd_std::priv::_Select1st<stlpd_std::pair<const uint64,HPowerType>>,
2> _Alloc=stlpd_std::allocator<stlpd_std::pair<const uint64,HPowerType>>,
2> _KT=PowerTypeMgr::PowerType *
2> ]
2> c:\cry_v340_3696\code\sdks\stlport\stlport\stl\_map.h(214) : see reference to function template instantiation 'stlpd_std::priv::_DBG_iter<_Container,_Traits> stlpd_std::priv::_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,stlpd_std::priv::_MapTraitsT<_Tp>,_Alloc>::find<_KT>(const _KT &)' being compiled
2> with
2> [
2> _Container=stlpd_std::priv::_NonDbg_Rb_tree<unsigned __int64,stlpd_std::priv::_DbgCompare<unsigned __int64,stlpd_std::less<uint64>>,stlpd_std::pair<const uint64,HPowerType>,stlpd_std::priv::_Select1st<stlpd_std::pair<const uint64,HPowerType>>,stlpd_std::priv::_MapTraitsT<stlpd_std::pair<const uint64,HPowerType>>,stlpd_std::allocator<stlpd_std::pair<const uint64,HPowerType>>>,
2> _Traits=stlpd_std::priv::_DbgTraits<stlpd_std::priv::_MapTraitsT<stlpd_std::pair<const uint64,HPowerType>>>,
2> _Key=unsigned __int64,
2> _Compare=stlpd_std::less<uint64>,
2> _Value=stlpd_std::pair<const uint64,HPowerType>,
2> _KeyOfValue=stlpd_std::priv::_Select1st<stlpd_std::pair<const uint64,HPowerType>>,
2> _Tp=stlpd_std::pair<const uint64,HPowerType>,
2> _Alloc=stlpd_std::allocator<stlpd_std::pair<const uint64,HPowerType>>,
2> _KT=PowerTypeMgr::PowerType *
2> ]
2> c:\cry_v340_3696\code\game\gamedll\monk\powertypemgr.cpp(78) : see reference to function template instantiation 'stlpd_std::priv::_DBG_iter<_Container,_Traits> stlpd_std::map<_Key,_Tp>::find<PowerTypeMgr::PowerType*>(const _KT &)' being compiled
2> with
2> [
2> _Container=stlpd_std::priv::_NonDbg_Rb_tree<unsigned __int64,stlpd_std::priv::_DbgCompare<unsigned __int64,stlpd_std::less<uint64>>,stlpd_std::pair<const uint64,HPowerType>,stlpd_std::priv::_Select1st<stlpd_std::pair<const uint64,HPowerType>>,stlpd_std::priv::_MapTraitsT<stlpd_std::pair<const uint64,HPowerType>>,stlpd_std::allocator<stlpd_std::pair<const uint64,HPowerType>>>,
2> _Traits=stlpd_std::priv::_DbgTraits<stlpd_std::priv::_MapTraitsT<stlpd_std::pair<const uint64,HPowerType>>>,
2> _Key=uint64,
2> _Tp=HPowerType,
2> _KT=PowerTypeMgr::PowerType *
2> ]
2>c:\cry_v340_3696\code\sdks\stlport\stlport\stl\debug\_tree.h(62): error C2664: 'bool stlpd_std::less<_Tp>::operator ()(const _Tp &,const _Tp &) const' : cannot convert parameter 1 from 'PowerTypeMgr::PowerType *const ' to 'const uint64 &'
2> with
2> [
2> _Tp=uint64
2> ]
2> Reason: cannot convert from 'PowerTypeMgr::PowerType *const ' to 'const uint64'
2> There is no context in which this conversion is possible
2> c:\cry_v340_3696\code\sdks\stlport\stlport\stl\_tree.h(576) : see reference to function template instantiation 'bool stlpd_std::priv::_DbgCompare<_Key,_Compare>::operator ()<_KT,_Key>(const _Kp1 &,const _Kp2 &) const' being compiled
2> with
2> [
2> _Key=unsigned __int64,
2> _Compare=stlpd_std::less<uint64>,
2> _KT=PowerTypeMgr::PowerType *,
2> _Kp1=PowerTypeMgr::PowerType *,
2> _Kp2=unsigned __int64
2> ]
2> PowerWeapon.cpp
...'