icc12 does not support std::move?

[alnhfa]

The following program works well with gcc-4.3. When I use icc12, it said:
move.cc(11): error: namespace "std" has no member "move"
fun(std::move(a));
^
Is there any workaround?
Thank you very much.
[cpp]#include void fun(const int&a){ std::cout<

[JenniferJ]

Not sure why it doesn't compiler.
On Windows if you've got VS2010 and icl, icl will compile and run fine.

It's probably a bug on Linux. I'll file a bug report for it.

thanks,
Jennifer

[alnhfa]

I found the definition of std::move in bits/stl_move.h (line 26 of the following code).
When compiled with gcc -std=c++0x, __GXX_EXPERIMENTAL_CXX0X__ was defined, so std::move was defined.
But when compiled with icpc -std=c++0x, __GXX_EXPERIMENTAL_CXX0X__ was not defined, as a result std::move was not defined.

part of bits/stl_move.h:

[cpp]#ifndef _STL_MOVE_H
#define _STL_MOVE_H 1

#include 
#include 

#ifdef __GXX_EXPERIMENTAL_CXX0X__
#include 

_GLIBCXX_BEGIN_NAMESPACE(std)

  // 20.2.2, forward/move
  template
    struct identity
    {
      typedef _Tp type;
    };

  template
    inline _Tp&&
    forward(typename std::identity<_Tp>::type&& __t)
    { return __t; }

  template
    inline typename std::remove_reference<_Tp>::type&&
    move(_Tp&& __t)
    { return __t; }

_GLIBCXX_END_NAMESPACE

#define _GLIBCXX_MOVE(_Tp) std::move(_Tp)
#else
#define _GLIBCXX_MOVE(_Tp) (_Tp)
#endif
[/cpp]

[heavenbird]

I had the same issue with std::move() on Linux.

Apparently the -std=c++0x -D__GXX_EXPERIMENTAL_CXX0X approach didnt' work, I got lots of compilation errors regarding STL, so I hand copied the move() function into my program:

1. template
2. struct remove_reference
3. { typedef _Tp type; };
5. template
6. struct remove_reference<_Tp&>
7. { typedef _Tp type; };)
9. template
10. struct remove_reference<_Tp&&>
11. { typedef _Tp type; };
13. template
14. inline typename remove_reference<_Tp>::type&&
15. move(_Tp&& __t)
16. { return __t; }

And my corresponding copy constructor was:

1. template matrix:: matrix(matrix&& x)
2. {*this = move(x);}

then I got this error message:

error: an rvalue reference cannot be bound to an lvalue

{ return __t; }

^

detected during:

instantiation of "remove_reference<_Tp>::type &&move(_Tp &&) [with _Tp=matrix &]

Is my copy constructor wrong or something to do with the Intel compiler ??

I was using XE12 with update 4 and compiler option:

-std=c++0x -O3 -fno-omit-frame-pointer -opt-prefetch=3 -nolib-inline -inline-level=2 -parallel-Qoption,cpp,--extended_float_type,-mkl=parallel

Ubuntu 10.4 with gcc 4.4.3.

Thanks alot !!

Haining

[JenniferJ]

Hello, Good news. this issue has been fixed in the Intel C++ Composer XE 2013 for Linux. if your support service is not expired, it is free for you to upgrade it. Thanks, Jennifer