I am getting the following error message during compilation of my C++ program on XP laptop using .NET libraries:
ossxerces_utils .cxx
C:\narayan\axce lis\Lib\ossxerc es_utils\src\Os sDataFileTempla te.cxx(122) : error
C2582: 'operator =' function is unavailable in 'std::basic_ofs tream<_Elem,_Tr ait
s>'
with
[
_Elem=char,
_Traits=std::ch ar_traits<char>
]
C:\narayan\axce lis\Lib\ossxerc es_utils\src\Os sDataFileTempla te.cxx(304) : error
C2440: 'return' : cannot convert from 'std::_Ptrit<_T y,_Diff,_Pointe r,_Reference
,_Pointer2,_Ref erence2>::_Myt' to 'OssDataTag *'
with
[
_Ty=std::vector <OssDataTag,std ::allocator<Oss DataTag>>::valu e_type,
_Diff=std::vect or<OssDataTag,s td::allocator<O ssDataTag>>::di fference
_type,
_Pointer=std::v ector<OssDataTa g,std::allocato r<OssDataTag>>: :_Tptr,
_Reference=std: :vector<OssData Tag,std::alloca tor<OssDataTag> >::refer
ence,
_Pointer2=std:: vector<OssDataT ag,std::allocat or<OssDataTag>> ::_Tptr,
_Reference2=std ::vector<OssDat aTag,std::alloc ator<OssDataTag >>::refe
rence
]
No user-defined-conversion operator available that can perform this conv
ersion, or the operator cannot be called
NMAKE : fatal error U1077: 'cl' : return code '0x2'
Stop.
"ANY HELP HIGHLY APPRECIATED"
1  1924 
"mn04" <an*******@disc ussions.microso ft.com> wrote I am getting the following error message during compilation of my C++
program on XP laptop using .NET libraries:
ossxerces_utils .cxx
C:\narayan\axce lis\Lib\ossxerc es_utils\src\Os sDataFileTempla te.cxx(122) :
error C2582: 'operator =' function is unavailable in
'std::basic_ofs tream<_Elem,_Tr ait s>'
with
[
_Elem=char,
_Traits=std::ch ar_traits<char>
]
You can't assign to objects of type basic_ofstream. The copy-assignment
operator
cannot be generated because members or bases are not copy-assignable.
What are you trying to do?
C:\narayan\axce lis\Lib\ossxerc es_utils\src\Os sDataFileTempla te.cxx(304) :
error C2440: 'return' : cannot convert from
'std::_Ptrit<_T y,_Diff,_Pointe r,_Reference ,_Pointer2,_Ref erence2>::_Myt' to 'OssDataTag *'
with
[
_Ty=std::vector <OssDataTag,std ::allocator<Oss DataTag>>::valu e_type,
... ]
No user-defined-conversion operator available that can perform
this conv ersion, or the operator cannot be called
Iterators are modelled after pointers. But they need not be pointers. VC 6
uses
pointer types for vector iterators. In VC7+ there are distinct types for
iterators.
You should probably use a std::vector<Oss DataTag>::itera tor or
std::vector<Oss DataTag>::const _iterator. If you really want to obtain a
pointer
from an iterator you can still use &*iter. E.g.
std::vector<int > v;
std::vector<int >::iterator i = v.begin(); // OK
int* p = &*v.begin(); // OK
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