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rename build stages to multiples of 10; old stage 2 becomes stage 15, while stage 20 generates errors (instead of warnings) on conflicting API.

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This commit is contained in:
Benoit Jacob
2011-01-23 18:22:18 -05:00
parent cc1f70abc3
commit 8df5bca979
6 changed files with 87 additions and 34 deletions
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53
Eigen/src/Eigen2Support/Meta.h
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@@ -29,11 +29,58 @@ template<typename T>
struct ei_traits : internal::traits<T>
{};
template<typename T, typename U>
struct ei_is_same_type
struct ei_meta_true { enum { ret = 1 }; };
struct ei_meta_false { enum { ret = 0 }; };
template<bool Condition, typename Then, typename Else>
struct ei_meta_if { typedef Then ret; };
template<typename Then, typename Else>
struct ei_meta_if <false, Then, Else> { typedef Else ret; };
template<typename T, typename U> struct ei_is_same_type { enum { ret = 0 }; };
template<typename T> struct ei_is_same_type<T,T> { enum { ret = 1 }; };
template<typename T> struct ei_unref { typedef T type; };
template<typename T> struct ei_unref<T&> { typedef T type; };
template<typename T> struct ei_unpointer { typedef T type; };
template<typename T> struct ei_unpointer<T*> { typedef T type; };
template<typename T> struct ei_unpointer<T*const> { typedef T type; };
template<typename T> struct ei_unconst { typedef T type; };
template<typename T> struct ei_unconst<const T> { typedef T type; };
template<typename T> struct ei_unconst<T const &> { typedef T & type; };
template<typename T> struct ei_unconst<T const *> { typedef T * type; };
template<typename T> struct ei_cleantype { typedef T type; };
template<typename T> struct ei_cleantype<const T> { typedef typename ei_cleantype<T>::type type; };
template<typename T> struct ei_cleantype<const T&> { typedef typename ei_cleantype<T>::type type; };
template<typename T> struct ei_cleantype<T&> { typedef typename ei_cleantype<T>::type type; };
template<typename T> struct ei_cleantype<const T*> { typedef typename ei_cleantype<T>::type type; };
template<typename T> struct ei_cleantype<T*> { typedef typename ei_cleantype<T>::type type; };
/** \internal In short, it computes int(sqrt(\a Y)) with \a Y an integer.
* Usage example: \code ei_meta_sqrt<1023>::ret \endcode
*/
template<int Y,
int InfX = 0,
int SupX = ((Y==1) ? 1 : Y/2),
bool Done = ((SupX-InfX)<=1 ? true : ((SupX*SupX <= Y) && ((SupX+1)*(SupX+1) > Y))) >
// use ?: instead of || just to shut up a stupid gcc 4.3 warning
class ei_meta_sqrt
{
enum { ret = internal::is_same<T, U>::value };
enum {
MidX = (InfX+SupX)/2,
TakeInf = MidX*MidX > Y ? 1 : 0,
NewInf = int(TakeInf) ? InfX : int(MidX),
NewSup = int(TakeInf) ? int(MidX) : SupX
};
public:
enum { ret = ei_meta_sqrt<Y,NewInf,NewSup>::ret };
};
template<int Y, int InfX, int SupX>
class ei_meta_sqrt<Y, InfX, SupX, true> { public: enum { ret = (SupX*SupX <= Y) ? SupX : InfX }; };
#endif // EIGEN2_META_H