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A test to try to solve the problem of tuple of void on windows.

This commit is contained in:
Guillaume Damiand 2011-05-27 06:58:50 +00:00
parent 6dbb62caee
commit b8406cb60d
1 changed files with 57 additions and 8 deletions
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65
Combinatorial_map/examples/Combinatorial_map/test-tuple.cc
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@ -1,8 +1,57 @@
#include <CGAL/tuple.h>
#include <iostream>
typedef CGAL::cpp0x::tuple<void,int> testtuple;
int main()
{
std::cout<<CGAL::cpp0x::tuple_size<testtuple>::value<<std::endl;
}
#include <CGAL/tuple.h>
#include <iostream>
template<typename T>
struct Convert_void
{ typedef T type; };
template<>
struct Convert_void<void>
{ typedef int type; };
#ifndef CGAL_CFG_NO_CPP0X_VARIADIC_TEMPLATES
template<typename ... Items>
struct Convert_tuple_with_void<CGAL::cpp0x::tuple<Items...> >
{
typedef CGAL::cpp0x::tuple<typename Convert_void<Items>::type... > type;
};
#else //CGAL_CFG_NO_CPP0X_VARIADIC_TEMPLATES
template <class T1>
struct Convert_tuple_with_void;
template <class T1>
struct Convert_tuple_with_void<CGAL::cpp0x::tuple<T1> >
{
typedef CGAL::cpp0x::tuple<typename Convert_void<T1>::type > type;
};
template <class T1, class T2>
struct Convert_tuple_with_void<CGAL::cpp0x::tuple<T1,T2> >
{
typedef CGAL::cpp0x::tuple<typename Convert_void<T1>::type,
typename Convert_void<T2>::type> type;
};
template <class T1, class T2, class T3>
struct Convert_tuple_with_void<CGAL::cpp0x::tuple<T1,T2,T3> >
{
typedef CGAL::cpp0x::tuple<typename Convert_void<T1>::type,
typename Convert_void<T2>::type,
typename Convert_void<T3>::type> type;
};
#endif //CGAL_CFG_NO_CPP0X_VARIADIC_TEMPLATES
typedef CGAL::cpp0x::tuple<void,int> testtuple;
typedef Convert_tuple_with_void<testtuple>::type converttuple;
int main()
{
// The following line does not compile on windows:
// std::cout<<CGAL::cpp0x::tuple_size<testtuple>::value<<std::endl;
// Idea: convert the tuple with possible void into a tuple without void.
converttuple t;
std::cout<<CGAL::cpp0x::tuple_size<converttuple>::value<<std::endl;
}