inline size_t CString_hash_value( const CString& str) /*const*/
{
size_t value = _HASH_SEED;
size_t size = str.GetLength();
if (size > 0) {
size_t temp = (size / 16) + 1;
size -= temp;
for (size_t idx = 0; idx <= size; idx += temp) {
value += (size_t)str[(int)idx];
}
}
return(value);
}
class CString_hash_compare : public hash_compare<CString>
{
public:
size_t operator()(const CString& _Key) const
{
return((size_t)CString_hash_value(_Key));
}
bool operator()(const CString& _Keyval1, const CString& _Keyval2) const
{
return (comp(_Keyval1, _Keyval2));
}
};
class CUsers
{
static hash_map<CString, CUser *, CString_hash_compare> UserMap m_users;
}
调用失败！！！
错误 1 error LNK2001: 无法解析的外部符号 "public: static class stdext::hash_map<class ATL::CStringT<wchar_t,class StrTraitMFC_DLL<wchar_t,class ATL::ChTraitsCRT<wchar_t> > >,class CUser *,class CString_hash_compare,class std::allocator<struct std::pair<class ATL::CStringT<wchar_t,class StrTraitMFC_DLL<wchar_t,class ATL::ChTraitsCRT<wchar_t> > > const ,class CUser *> > > CUsers::m_users" (?m_users@CUsers@@2V?$hash_map@V?$CStringT@_WV?$StrTraitMFC_DLL@_WV?$ChTraitsCRT@_W@ATL@@@@@ATL@@PAVCUser@@VCString_hash_compare@@V?$allocator@U?$pair@$$CBV?$CStringT@_WV?$StrTraitMFC_DLL@_WV?$ChTraitsCRT@_W@ATL@@@@@ATL@@PAVCUser@@@std@@@std@@@stdext@@A) XQBot.obj
解决方案
将
static hash_map<CString, CUser *, CString_hash_compare> UserMap m_users;
改为
hash_map<CString, CUser *, CString_hash_compare> UserMap m_users;