1 // std::rel_ops implementation -*- C++ -*-
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52 /** @file bits/stl_relops.h
53 * This is an internal header file, included by other library headers.
54 * Do not attempt to use it directly. @headername{utility}
56 * Inclusion of this file has been removed from
57 * all of the other STL headers for safety reasons, except std_utility.h.
58 * For more information, see the thread of about twenty messages starting
59 * with http://gcc.gnu.org/ml/libstdc++/2001-01/msg00223.html, or
60 * http://gcc.gnu.org/onlinedocs/libstdc++/faq.html#faq.ambiguous_overloads
62 * Short summary: the rel_ops operators should be avoided for the present.
66 #define _STL_RELOPS_H 1
68 namespace std _GLIBCXX_VISIBILITY(default)
72 _GLIBCXX_BEGIN_NAMESPACE_VERSION
74 /** @namespace std::rel_ops
75 * @brief The generated relational operators are sequestered here.
79 * @brief Defines @c != for arbitrary types, in terms of @c ==.
81 * @param __y Another thing.
84 * This function uses @c == to determine its result.
88 operator!=(const _Tp& __x, const _Tp& __y)
89 { return !(__x == __y); }
92 * @brief Defines @c > for arbitrary types, in terms of @c <.
94 * @param __y Another thing.
97 * This function uses @c < to determine its result.
101 operator>(const _Tp& __x, const _Tp& __y)
102 { return __y < __x; }
105 * @brief Defines @c <= for arbitrary types, in terms of @c <.
106 * @param __x A thing.
107 * @param __y Another thing.
110 * This function uses @c < to determine its result.
114 operator<=(const _Tp& __x, const _Tp& __y)
115 { return !(__y < __x); }
118 * @brief Defines @c >= for arbitrary types, in terms of @c <.
119 * @param __x A thing.
120 * @param __y Another thing.
123 * This function uses @c < to determine its result.
127 operator>=(const _Tp& __x, const _Tp& __y)
128 { return !(__x < __y); }
130 _GLIBCXX_END_NAMESPACE_VERSION
131 } // namespace rel_ops
135 #endif /* _STL_RELOPS_H */