[Insight-developers] VTK_USE_ANSI_STDLIB confusion

[Bill Hoffman]

You have to find the part of the code that is including an
old stream file, something like <iostream.h>.    Then you can try
to make that the last include, or change it.

-Bill


At 02:46 PM 5/23/2003, Robert Tamburo wrote:
>Our application is built on ITK/VTK/FLTK. Everything was fine until VTK was
>built with VTK_USE_ANSI_STDLIB set to "ON".
>
>Here's a small sample of the errors:
>C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\strstream(51) : error
>C2039: 'seekdir' : is not a member of 'ios'
>        C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\ios.h(106) :
>see declaration of 'ios'
>C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\strstream(51) : error
>C2061: syntax error : identifier 'seekdir'
>C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\strstream(54) : error
>C2039: 'openmode' : is not a member of 'ios'
>        C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\ios.h(106) :
>see declaration of 'ios'
>D:\VTK\Common\vtkIOStream.h(44) : error C2874: using-declaration causes a
>multiple declaration of 'cerr'
>        C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\iostream(19) :
>see declaration of 'cerr'
>D:\VTK\Common\vtkIOStream.h(45) : error C2874: using-declaration causes a
>multiple declaration of 'cout'
>        C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\iostream(18) :
>see declaration of 'cout'
>C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\ios.h(104) : error
>C2371: 'ostream' : redefinition; different basic types
>        C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\iosfwd(257) :
>see declaration of 'ostream'
>C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\ios.h(106) : error
>C2371: 'ios' : redefinition; different basic types
>        C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\iosfwd(254) :
>see declaration of 'ios'
>
>I'm confused for several reasons. First of course being that ITK is not
>supposed to build with
>VTK_USE_ANSI_STDLIB  to "ON" as testified in:
>http://www . itk . org/cgi-bin/InsightFAQ/InsightFAQ?query=ansi&querytype=simple&casefold=yes&req=search
>http://www . itk . org/pipermail/insight-users/2003-April/003313 . html
>http://public . kitware . com/pipermail/insight-users/2002-March/000192 . html)
>....but I have no problems building ITK or our app with this flag set to
>"OFF"
>
>As per the suggestions in the FAQ:
>"If the compile/link error is in an application that is trying to use ITK,
>the solution is usually to include an ITK header file before any other
>include file. This forces whatever include files that the application may
>use to use the Standard Library streams library. "
>http://www . itk . org/cgi-bin/InsightFAQ/InsightFAQ?query=ostream&querytype=simple&casefold=yes&req=search
>.........I moved all ITK includes before any other include files and the
>problem still persists.
>
>Any help in understanding this behavior would be greatly appreciated.
>
>-Rob
>
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