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Added Arity typedefs for AdaptableFunctors.

This commit is contained in:
Michael Hoffmann 2001-07-05 05:49:01 +00:00
parent d30ea9ba27
commit efb2b0a68c
1 changed files with 12 additions and 1 deletions
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13
Packages/Number_types/include/CGAL/number_utils_classes.h
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@ -32,30 +32,34 @@
#endif // CGAL_CONFIG_H
#include <algorithm>
#include <functional>
#include <CGAL/functional_base.h>
CGAL_BEGIN_NAMESPACE
template < class NT >
struct Is_zero :public CGAL_STD::unary_function< NT, bool > {
typedef Arity_tag< 1 > Arity;
bool operator()( const NT& x) const
{ return is_zero( x); }
};
template < class NT >
struct Is_one :public CGAL_STD::unary_function< NT, bool > {
typedef Arity_tag< 1 > Arity;
bool operator()( const NT& x) const
{ return is_one( x); }
};
template < class NT >
struct Is_negative :public CGAL_STD::unary_function< NT, bool > {
typedef Arity_tag< 1 > Arity;
bool operator()( const NT& x) const
{ return is_negative( x); }
};
template < class NT >
struct Is_positive :public CGAL_STD::unary_function< NT, bool > {
typedef Arity_tag< 1 > Arity;
bool operator()( const NT& x) const
{ return is_positive( x); }
};
@ -63,6 +67,7 @@ struct Is_positive :public CGAL_STD::unary_function< NT, bool > {
// Sign would result in a name clash with enum.h
template < class NT >
struct Sgn :public CGAL_STD::unary_function< NT, int > {
typedef Arity_tag< 1 > Arity;
Sign operator()( const NT& x) const
{ return sign( x); }
};
@ -70,6 +75,7 @@ struct Sgn :public CGAL_STD::unary_function< NT, int > {
template < class NT >
struct Lexicographical_sign
:public CGAL_STD::binary_function< NT, NT, int > {
typedef Arity_tag< 2 > Arity;
Sign operator()( const NT& x, const NT& y) const
{ return lexicographical_sign( x, y); }
@ -77,18 +83,21 @@ struct Lexicographical_sign
template < class NT >
struct Abs :public CGAL_STD::unary_function< NT, NT > {
typedef Arity_tag< 1 > Arity;
NT operator()( const NT& x) const
{ return abs( x); }
};
template < class NT >
struct Min :public CGAL_STD::binary_function< NT, NT, NT > {
typedef Arity_tag< 2 > Arity;
NT operator()( const NT& x, const NT& y) const
{ return std::min( x, y); }
};
template < class NT >
struct Max :public CGAL_STD::binary_function< NT, NT, NT > {
typedef Arity_tag< 2 > Arity;
NT operator()( const NT& x, const NT& y) const
{ return std::max( x, y); }
};
@ -96,6 +105,7 @@ struct Max :public CGAL_STD::binary_function< NT, NT, NT > {
template < class NT >
struct Compare
:public CGAL_STD::binary_function< NT, NT, Comparison_result > {
typedef Arity_tag< 2 > Arity;
Comparison_result
operator()( const NT& x, const NT& y) const
@ -104,6 +114,7 @@ struct Compare
template < class NT >
struct Square :public CGAL_STD::unary_function< NT, NT > {
typedef Arity_tag< 2 > Arity;
NT
operator()( const NT& x) const