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add missing typedef for Inverse when use within Lazy. 

add comment about static variable
This commit is contained in:
Sébastien Loriot 2010-11-08 14:42:49 +00:00
parent adf5b2bc4a
commit 4dbad8e21e
1 changed files with 3 additions and 1 deletions
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4
Algebraic_foundations/include/CGAL/Algebraic_structure_traits.h
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@ -125,7 +125,8 @@ class Algebraic_structure_traits_base< Type_, Null_tag > {
typedef Null_functor Sqrt;
typedef Null_functor Kth_root;
typedef Null_functor Root_of;
typedef Null_functor Divides;
typedef Null_functor Divides;
typedef Null_functor Inverse;
};
//! The template specialization that is used if the number type is
@ -469,6 +470,7 @@ class Algebraic_structure_traits_base< Type_, Field_tag >
: public std::unary_function< Type, Type > {
public:
Type operator()( const Type& x ) const {
//warning THIS IS NOT THREAD SAFE
static const Type& one = Type(1);
return one/x;
}