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Fix buggy behavior of VC7 with TypeTraits<T>::isPointer/IsArray reported by Waldemar Rosenbach

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git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@121 7ec92016-0320-0410-acc4-a06ded1c099a
This commit is contained in:
rani_sharoni 2003-03-11 18:44:46 +00:00
parent 354b51e3b1
commit a2f9a004c3
1 changed files with 35 additions and 14 deletions
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49
MSVC/1300/TypeTraits.h
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@ -91,6 +91,40 @@ namespace Loki
typedef TYPELIST_3(float, double, long double) StdFloats;
}
namespace Private
{
template<typename T>
class IsArray
{
template <typename> struct Type2Type2 {};
typedef char (&yes)[1];
typedef char (&no) [2];
template<typename U, size_t N>
static void vc7_need_this_for_is_array(Type2Type2<U(*)[N]>);
template<typename U, size_t N>
static yes is_array1(Type2Type2<U[N]>*);
static no is_array1(...);
template<typename U>
static yes is_array2(Type2Type2<U[]>*);
static no is_array2(...);
public:
enum {
value =
sizeof(is_array1((Type2Type2<T>*)0)) == sizeof(yes) ||
sizeof(is_array2((Type2Type2<T>*)0)) == sizeof(yes)
};
};
} // Private Namespace
////////////////////////////////////////////////////////////////////////////////
// class template TypeTraits
// Figures out various properties of any given type
@ -150,9 +184,6 @@ namespace Loki
typedef char (&yes)[1];
typedef char (&no) [2];
template<typename U, size_t N>
static void vc7_need_this_for_is_array(Type2Type<U[N]>);
template<typename U>
static yes is_reference(Type2Type<U&>);
static no is_reference(...);
@ -177,14 +208,6 @@ namespace Loki
static yes is_pointer2member(Type2Type<U V::*>);
static no is_pointer2member(...);
template<typename U, size_t N>
static yes is_array1(Type2Type<U[N]>);
static no is_array1(...);
template<typename U>
static yes is_array2(Type2Type<U[]>);
static no is_array2(...);
template<typename U>
static yes is_const(Type2Type<const U>);
static no is_const(...);
@ -219,9 +242,7 @@ namespace Loki
};
enum {
isArray =
sizeof(is_array1(Type2Type<T>())) == sizeof(yes) ||
sizeof(is_array2(Type2Type<T>())) == sizeof(yes)
isArray = Private::IsArray<T>::value
};
enum {