Viewing file:  gdcmStaticAssert.h (1.47 KB) -rw-r--r--
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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#ifndef GDCMSTATICASSERT_H
#define GDCMSTATICASSERT_H
// the following was shamelessly borowed from BOOST static assert:
namespace gdcm
{
template <bool x>
struct STATIC_ASSERTION_FAILURE;
template <>
struct STATIC_ASSERTION_FAILURE<true> { enum { value = 1 }; };
template <int x>
struct static_assert_test {};
}
#define GDCM_JOIN( X, Y ) GDCM_DO_JOIN( X, Y )
#define GDCM_DO_JOIN( X, Y ) GDCM_DO_JOIN2(X,Y)
#define GDCM_DO_JOIN2( X, Y ) X##Y
/// The GDCM_JOIN + __LINE__ is needed to create a uniq identifier
#define GDCM_STATIC_ASSERT( B ) \
typedef ::gdcm::static_assert_test<\
sizeof(::gdcm::STATIC_ASSERTION_FAILURE< (bool)( B ) >)>\
GDCM_JOIN(gdcm_static_assert_typedef_, __LINE__)
/* Example of use:
*
* template <class T>
* struct must_not_be_instantiated
* {
* // this will be triggered if this type is instantiated
* GDCM_STATIC_ASSERT(sizeof(T) == 0);
* };
*
*/
#endif // GDCMSTATICASSERT_H
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