Linuxプログラムの一部をWindowsに移植中です。私のコードがMinGWとVisualC++ 10の両方で、あまり多く#define
の#ifdef
魔法を使わずにコンパイルできることを確認したいと思います。私はこれを除いて、ほとんどの問題を解決することができました。次のようなコードがあります。これはg++4.6.3では正常にコンパイルされますが、Visual C++10ではコンパイルされません。
#include <iostream>
#include <vector>
#include <array>
#include <algorithm>
#include <functional>
#include <cmath>
#include <iterator>
typedef unsigned char UINT8;
const UINT8 MAX_COLL = 10;
template< typename BaseT, typename ExpT >
struct fopow {
BaseT operator() ( BaseT base, ExpT exp ) const {
return std::pow( base, exp );
}
};
int main() {
using namespace std;
using namespace std::placeholders;
array<int, MAX_COLL> intCollection_init = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
vector<int> intCollection( intCollection_init.begin(), intCollection_init.end() );
transform( intCollection.begin(), intCollection.end(),
ostream_iterator<int>( cout, " " ),
bind( fopow<int, int>(), 3, _1 )
);
cout << endl;
transform( intCollection.begin(), intCollection.end(),
ostream_iterator<int>( cout, " " ),
bind( fopow<int, int>(), _1, 3 )
);
cout << endl;
}
コンパイラの出力は、私にはリモートでさえ理解できません。
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86
Copyright (C) Microsoft Corporation. All rights reserved.
Test2.cpp C:\Program Files\Microsoft Visual Studio
10.0\VC\INCLUDE\xxresult(28) : error C2903: 'result' : symbol is neither a class template nor a function template
C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxresult(40) : see reference to class tem plate instantiation 'std::tr1::_Result_type2<__formal,_Fty,_Arg0,_Arg1>' being compiled
with
[
__formal=false,
_Fty=fopow<int,int>,
_Arg0=std::tr1::_Nil &,
_Arg1=std::tr1::_Nil &
]
C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxresult(597) : see reference to class te mplate instantiation 'std::tr1::_Result_of2<_Fty,_Farg0,_Farg1>' being compiled
with
[
_Fty=fopow<int,int>,
_Farg0=std::tr1::_Nil &,
_Farg1=std::tr1::_Nil &
]
C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xrefwrap(28) : see reference to class tem plate instantiation 'std::tr1::_Result_of<_Ty>' being compiled
with
[
_Ty=fopow<int,int> (std::tr1::_Nil &,std::tr1::_Nil &)
]
C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxbind1(273) : see reference to class tem plate instantiation 'std::tr1::result_of<_Fty>' being compiled
with
[
_Fty=fopow<int,int> (std::tr1::_Nil &,std::tr1::_Nil &)
]
C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxbind0(10) : see reference to class temp late instantiation 'std::tr1::_Bind2<_Callable,_Arg0,_Arg1>::_Return<_Barg0,_Barg1,_Barg2,_Barg3,_Barg4,_B arg5,_Barg6,_Barg7,_Barg8,_Barg9>' being compiled
with
[
_Callable=std::tr1::_Callable_obj<fopow<int,int>,false>,
_Arg0=int,
_Arg1=std::tr1::_Ph<1>,
_Barg0=std::tr1::_Nil &,
_Barg1=std::tr1::_Nil &,
_Barg2=std::tr1::_Nil &,
_Barg3=std::tr1::_Nil &,
_Barg4=std::tr1::_Nil &,
_Barg5=std::tr1::_Nil &,
_Barg6=std::tr1::_Nil &,
_Barg7=std::tr1::_Nil &,
_Barg8=std::tr1::_Nil &,
_Barg9=std::tr1::_Nil &
]
C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\functional(408) : see reference to class template instantiation 'std::tr1::_Bind_base<_Ret,_BindN>' being compiled
with
[
_Ret=std::tr1::_Notforced,
_BindN=std::tr1::_Bind2<std::tr1::_Callable_obj<fopow<int,int>,false>,int,std::tr1::_Ph<1>>
]
Test2.cpp(26) : see reference to class template instantiation 'std::tr1::_Bind_fty<_Fty,_Ret,_Bind N>' being compiled
with
[
_Fty=fopow<int,int>,
_Ret=std::tr1::_Notforced,
_BindN=std::tr1::_Bind2<std::tr1::_Callable_obj<fopow<int,int>,false>,int,std::tr1::_Ph<1>>
] C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxresult(28) : error C2039: 'result' : is not a m ember of 'fopow<BaseT,ExpT>'
with
[
BaseT=int,
ExpT=int
] C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxresult(28) : error C2143: syntax error : missin g ';' before '<' C:\Program Files\Microsoft Visual Studio
10.0\VC\INCLUDE\xxresult(28) : error C4430: missing type specifie r - int assumed. Note: C++ does not support default-int C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxresult(28) : error C2039: 'type' : is not a mem ber of '`global namespace'' C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxresult(28) : error C2238: unexpected token(s) p receding ';' C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxresult(40) : error C2039: '_Type' : is not a me mber of 'std::tr1::_Result_type2<__formal,_Fty,_Arg0,_Arg1>'
with
[
__formal=false,
_Fty=fopow<int,int>,
_Arg0=std::tr1::_Nil &,
_Arg1=std::tr1::_Nil &
] C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxresult(40) : error C2146: syntax error : missin g ';' before identifier '_Type' C:\Program Files\Microsoft Visual Studio
10.0\VC\INCLUDE\xxresult(40) : error C4430: missing type specifie r - int assumed. Note: C++ does not support default-int C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxresult(40) : error C2602: 'std::tr1::_Result_of 2<_Fty,_Farg0,_Farg1>::_Type' is not a member of a base class of 'std::tr1::_Result_of2<_Fty,_Farg0,_Farg1
>'
with
[
_Fty=fopow<int,int>,
_Farg0=std::tr1::_Nil &,
_Farg1=std::tr1::_Nil &
]
C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxresult(40) : see declaration of 'std::t r1::_Result_of2<_Fty,_Farg0,_Farg1>::_Type'
with
[
_Fty=fopow<int,int>,
_Farg0=std::tr1::_Nil &,
_Farg1=std::tr1::_Nil &
] C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxresult(40) : error C2868: 'std::tr1::_Result_of 2<_Fty,_Farg0,_Farg1>::_Type' : illegal syntax for using-declaration; expected qualified-name
with
[
_Fty=fopow<int,int>,
_Farg0=std::tr1::_Nil &,
_Farg1=std::tr1::_Nil &
]
問題の根本はbind()またはtransform()だと思いますが、コードの何が正確に間違っているのかわかりません(g ++で警告が1つも発生せずに正常にコンパイルされるため)。誰かが前任者の魔法に頼らずに私のコードを修正する方法を知っていますか?