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From: Alexey Nikitin (reductor_at_[hidden])
Date: 2004-01-12 04:49:53

I have investigated problem with compilation with VC7.1 and have found the
next code is not compiled

--------------- test.cpp ------------------------
template< int N >
struct int_
   static const int value = N;

enum C { V }; // analogue level_type

struct A // analogue implementation_level
  typedef int_<V> type;
  static const C value = static_cast<C>(type::value); // problem line

int_<A::value> tmp;

with error
test.cpp(15) : error C2975: 'N' : invalid template argument for 'int_',
compile-time evaluatable constant expression expected
        test.cpp(1) : see declaration of 'N'

If problem line (analogue line 81 in level.hpp in which defined
implemetation_level struct) replace by
static const int value = type::value;
example is compiled ok.

Is it possible apply any workaround for this issue?


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