1 /* 2 * Copyright (c) 1999 3 * Silicon Graphics Computer Systems, Inc. 4 * 5 * Permission to use, copy, modify, distribute and sell this software 6 * and its documentation for any purpose is hereby granted without fee, 7 * provided that the above copyright notice appear in all copies and 8 * that both that copyright notice and this permission notice appear 9 * in supporting documentation. Silicon Graphics makes no 10 * representations about the suitability of this software for any 11 * purpose. It is provided "as is" without express or implied warranty. 12 */ 13 14 // WARNING: This is an internal header file, included by other C++ 15 // standard library headers. You should not attempt to use this header 16 // file directly. 17 18 #ifndef _STLP_INTERNAL_CTRAITS_FUNCTIONS_H 19 #define _STLP_INTERNAL_CTRAITS_FUNCTIONS_H 20 21 #ifndef _STLP_INTERNAL_FUNCTION_BASE_H 22 # include <stl/_function_base.h> 23 #endif 24 25 // This file contains a few small adapters that allow a character 26 // traits class to be used as a function object. 27 28 _STLP_BEGIN_NAMESPACE 29 30 _STLP_MOVE_TO_PRIV_NAMESPACE 31 32 template <class _Traits> 33 struct _Eq_traits 34 : public binary_function<typename _Traits::char_type, 35 typename _Traits::char_type, 36 bool> { operator_Eq_traits37 bool operator()(const typename _Traits::char_type& __x, 38 const typename _Traits::char_type& __y) const 39 { return _Traits::eq(__x, __y); } 40 }; 41 42 template <class _Traits> 43 struct _Eq_char_bound 44 : public unary_function<typename _Traits::char_type, bool> { 45 typename _Traits::char_type __val; _Eq_char_bound_Eq_char_bound46 _Eq_char_bound(typename _Traits::char_type __c) : __val(__c) {} operator_Eq_char_bound47 bool operator()(const typename _Traits::char_type& __x) const 48 { return _Traits::eq(__x, __val); } 49 }; 50 51 template <class _Traits> 52 struct _Neq_char_bound 53 : public unary_function<typename _Traits::char_type, bool> 54 { 55 typename _Traits::char_type __val; _Neq_char_bound_Neq_char_bound56 _Neq_char_bound(typename _Traits::char_type __c) : __val(__c) {} operator_Neq_char_bound57 bool operator()(const typename _Traits::char_type& __x) const 58 { return !_Traits::eq(__x, __val); } 59 }; 60 61 template <class _Traits> 62 struct _Eq_int_bound 63 : public unary_function<typename _Traits::char_type, bool> { 64 typename _Traits::int_type __val; 65 _Eq_int_bound_Eq_int_bound66 _Eq_int_bound(typename _Traits::int_type __c) : __val(__c) {} operator_Eq_int_bound67 bool operator()(const typename _Traits::char_type& __x) const 68 { return _Traits::eq_int_type(_Traits::to_int_type(__x), __val); } 69 }; 70 71 #if 0 72 template <class _Traits> 73 struct _Lt_traits 74 : public binary_function<typename _Traits::char_type, 75 typename _Traits::char_type, 76 bool> { 77 bool operator()(const typename _Traits::char_type& __x, 78 const typename _Traits::char_type& __y) const 79 { return _Traits::lt(__x, __y); } 80 }; 81 #endif 82 83 _STLP_MOVE_TO_STD_NAMESPACE 84 85 _STLP_END_NAMESPACE 86 87 #endif /* _STLP_INTERNAL_CTRAITS_FUNCTIONS_H */ 88 89 // Local Variables: 90 // mode:C++ 91 // End: 92