comparison DEPENDENCIES/generic/include/boost/lambda/detail/operators.hpp @ 16:2665513ce2d3

Add boost headers

+// Boost Lambda Library - operators.hpp --------------------------------------
+
+// Copyright (C) 1999, 2000 Jaakko Jarvi ([e-mail])
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// For more information, see www.boost.org
+
+// ---------------------------------------------------------------
+
+#ifndef BOOST_LAMBDA_OPERATORS_HPP
+#define BOOST_LAMBDA_OPERATORS_HPP
+
+#include "boost/lambda/detail/is_instance_of.hpp"
+
+namespace boost { 
+namespace lambda {
+
+#if defined BOOST_LAMBDA_BE1
+#error "Multiple defines of BOOST_LAMBDA_BE1"
+#endif
+
+  // For all BOOSTA_LAMBDA_BE* macros:
+
+  // CONSTA must be either 'A' or 'const A'
+  // CONSTB must be either 'B' or 'const B'
+
+  // It is stupid to have the names A and B as macro arguments, but it avoids
+  // the need to pass in emtpy macro arguments, which gives warnings on some
+  // compilers
+
+#define BOOST_LAMBDA_BE1(OPER_NAME, ACTION, CONSTA, CONSTB, CONVERSION)      \
+template<class Arg, class B>                                                 \
+inline const                                                                 \
+lambda_functor<                                                              \
+  lambda_functor_base<                                                       \
+    ACTION,                                                                  \
+    tuple<lambda_functor<Arg>, typename const_copy_argument <CONSTB>::type>  \
+  >                                                                          \
+>                                                                            \
+OPER_NAME (const lambda_functor<Arg>& a, CONSTB& b) {                      \
+  return                                                                     \
+    lambda_functor_base<                                                     \
+      ACTION,                                                                \
+      tuple<lambda_functor<Arg>, typename const_copy_argument <CONSTB>::type>\
+    >                                                                        \
+   (tuple<lambda_functor<Arg>, typename const_copy_argument <CONSTB>::type>(a, b)); \
+}
+
+
+#if defined BOOST_LAMBDA_BE2
+#error "Multiple defines of BOOST_LAMBDA_BE2"
+#endif
+
+#define BOOST_LAMBDA_BE2(OPER_NAME, ACTION, CONSTA, CONSTB, CONVERSION)      \
+template<class A, class Arg>                                                 \
+inline const                                                                 \
+lambda_functor<                                                              \
+  lambda_functor_base<                                                       \
+    ACTION,                                                                  \
+    tuple<typename CONVERSION <CONSTA>::type, lambda_functor<Arg> >        \
+  >                                                                          \
+>                                                                            \
+OPER_NAME (CONSTA& a, const lambda_functor<Arg>& b) {                      \
+  return                                                                     \
+    lambda_functor_base<                                                     \
+      ACTION,                                                                \
+      tuple<typename CONVERSION <CONSTA>::type, lambda_functor<Arg> >      \
+    >                                                                        \
+  (tuple<typename CONVERSION <CONSTA>::type, lambda_functor<Arg> >(a, b)); \
+}
+
+
+#if defined BOOST_LAMBDA_BE3
+#error "Multiple defines of BOOST_LAMBDA_BE3"
+#endif
+
+#define BOOST_LAMBDA_BE3(OPER_NAME, ACTION, CONSTA, CONSTB, CONVERSION)    \
+template<class ArgA, class ArgB>                                           \
+inline const                                                               \
+lambda_functor<                                                            \
+  lambda_functor_base<                                                     \
+    ACTION,                                                                \
+    tuple<lambda_functor<ArgA>, lambda_functor<ArgB> >                     \
+  >                                                                        \
+>                                                                          \
+OPER_NAME (const lambda_functor<ArgA>& a, const lambda_functor<ArgB>& b) { \
+  return                                                                   \
+    lambda_functor_base<                                                   \
+      ACTION,                                                              \
+      tuple<lambda_functor<ArgA>, lambda_functor<ArgB> >                   \
+    >                                                                      \
+  (tuple<lambda_functor<ArgA>, lambda_functor<ArgB> >(a, b));              \
+}
+
+#if defined BOOST_LAMBDA_BE
+#error "Multiple defines of BOOST_LAMBDA_BE"
+#endif
+
+#define BOOST_LAMBDA_BE(OPER_NAME, ACTION, CONSTA, CONSTB, CONST_CONVERSION) \
+BOOST_LAMBDA_BE1(OPER_NAME, ACTION, CONSTA, CONSTB, CONST_CONVERSION)        \
+BOOST_LAMBDA_BE2(OPER_NAME, ACTION, CONSTA, CONSTB, CONST_CONVERSION)        \
+BOOST_LAMBDA_BE3(OPER_NAME, ACTION, CONSTA, CONSTB, CONST_CONVERSION)
+
+#define BOOST_LAMBDA_EMPTY() 
+
+BOOST_LAMBDA_BE(operator+, arithmetic_action<plus_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator-, arithmetic_action<minus_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator*, arithmetic_action<multiply_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator/, arithmetic_action<divide_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator%, arithmetic_action<remainder_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator<<, bitwise_action<leftshift_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator>>, bitwise_action<rightshift_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator&, bitwise_action<and_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator|, bitwise_action<or_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator^, bitwise_action<xor_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator&&, logical_action<and_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator||, logical_action<or_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator<, relational_action<less_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator>, relational_action<greater_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator<=, relational_action<lessorequal_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator>=, relational_action<greaterorequal_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator==, relational_action<equal_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE(operator!=, relational_action<notequal_action>, const A, const B, const_copy_argument)
+
+BOOST_LAMBDA_BE(operator+=, arithmetic_assignment_action<plus_action>, A, const B, reference_argument)
+BOOST_LAMBDA_BE(operator-=, arithmetic_assignment_action<minus_action>, A, const B, reference_argument)
+BOOST_LAMBDA_BE(operator*=, arithmetic_assignment_action<multiply_action>, A, const B, reference_argument)
+BOOST_LAMBDA_BE(operator/=, arithmetic_assignment_action<divide_action>, A, const B, reference_argument)
+BOOST_LAMBDA_BE(operator%=, arithmetic_assignment_action<remainder_action>, A, const B, reference_argument)
+BOOST_LAMBDA_BE(operator<<=, bitwise_assignment_action<leftshift_action>, A, const B, reference_argument)
+BOOST_LAMBDA_BE(operator>>=, bitwise_assignment_action<rightshift_action>, A, const B, reference_argument)
+BOOST_LAMBDA_BE(operator&=, bitwise_assignment_action<and_action>, A, const B, reference_argument)
+BOOST_LAMBDA_BE(operator|=, bitwise_assignment_action<or_action>, A, const B, reference_argument)
+BOOST_LAMBDA_BE(operator^=, bitwise_assignment_action<xor_action>, A, const B, reference_argument)
+
+
+// A special trick for comma operator for correct preprocessing
+#if defined BOOST_LAMBDA_COMMA_OPERATOR_NAME
+#error "Multiple defines of BOOST_LAMBDA_COMMA_OPERATOR_NAME"
+#endif
+
+#define BOOST_LAMBDA_COMMA_OPERATOR_NAME operator,
+
+BOOST_LAMBDA_BE1(BOOST_LAMBDA_COMMA_OPERATOR_NAME, other_action<comma_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE2(BOOST_LAMBDA_COMMA_OPERATOR_NAME, other_action<comma_action>, const A, const B, const_copy_argument)
+BOOST_LAMBDA_BE3(BOOST_LAMBDA_COMMA_OPERATOR_NAME, other_action<comma_action>, const A, const B, const_copy_argument)
+
+
+
+namespace detail {
+
+// special cases for ostream& << Any and istream& >> Any ---------------
+// the actual stream classes may vary and thus a specialisation for, 
+// say ostream& does not match (the general case above is chosen). 
+// Therefore we specialise for non-const reference:
+// if the left argument is a stream, we store the stream as reference
+// if it is something else, we store a const plain by default
+
+// Note that the overloading is const vs. non-const first argument
+
+#ifdef BOOST_NO_TEMPLATED_STREAMS
+template<class T> struct convert_ostream_to_ref_others_to_c_plain_by_default {
+  typedef typename detail::IF<
+                       boost::is_convertible<T*, std::ostream*>::value,
+                       T&,
+                       typename const_copy_argument <T>::type
+                     >::RET type;
+};
+
+template<class T> struct convert_istream_to_ref_others_to_c_plain_by_default {
+  typedef typename detail::IF<
+                       boost::is_convertible<T*, std::istream*>::value,
+                       T&,
+                       typename const_copy_argument <T>::type
+                     >::RET type;
+};
+#else
+
+template<class T> struct convert_ostream_to_ref_others_to_c_plain_by_default {
+  typedef typename detail::IF<
+                       is_instance_of_2<
+                         T, std::basic_ostream
+                       >::value,
+                       T&,
+                       typename const_copy_argument <T>::type
+                     >::RET type;
+};
+
+template<class T> struct convert_istream_to_ref_others_to_c_plain_by_default {
+  typedef typename detail::IF<
+                       is_instance_of_2<
+                         T, std::basic_istream
+                       >::value,
+                       T&,
+                       typename const_copy_argument <T>::type
+                     >::RET type;
+};
+#endif
+
+} // detail
+
+BOOST_LAMBDA_BE2(operator<<, bitwise_action< leftshift_action>, A, const B, detail::convert_ostream_to_ref_others_to_c_plain_by_default)
+BOOST_LAMBDA_BE2(operator>>, bitwise_action< rightshift_action>, A, const B, detail::convert_istream_to_ref_others_to_c_plain_by_default)      
+
+
+// special case for io_manipulators.
+// function references cannot be given as arguments to lambda operator
+// expressions in general. With << and >> the use of manipulators is
+// so common, that specializations are provided to make them work.
+
+template<class Arg, class Ret, class ManipArg>
+inline const 
+lambda_functor<
+  lambda_functor_base<
+    bitwise_action<leftshift_action>,
+    tuple<lambda_functor<Arg>, Ret(&)(ManipArg)> 
+  > 
+>
+operator<<(const lambda_functor<Arg>& a, Ret(&b)(ManipArg))
+{
+  return 
+      lambda_functor_base<
+        bitwise_action<leftshift_action>,
+        tuple<lambda_functor<Arg>, Ret(&)(ManipArg)>
+      > 
+    ( tuple<lambda_functor<Arg>, Ret(&)(ManipArg)>(a, b) );
+}
+
+template<class Arg, class Ret, class ManipArg>
+inline const 
+lambda_functor<
+  lambda_functor_base<
+    bitwise_action<rightshift_action>,
+    tuple<lambda_functor<Arg>, Ret(&)(ManipArg)>
+  > 
+>
+operator>>(const lambda_functor<Arg>& a, Ret(&b)(ManipArg))
+{
+  return 
+      lambda_functor_base<
+        bitwise_action<rightshift_action>,
+        tuple<lambda_functor<Arg>, Ret(&)(ManipArg)>
+      > 
+    ( tuple<lambda_functor<Arg>, Ret(&)(ManipArg)>(a, b) );
+}
+
+
+// (+ and -) take their arguments as const references. 
+// This has consquences with pointer artihmetic
+// E.g int a[]; ... *a = 1 works but not *(a+1) = 1. 
+// the result of a+1 would be const
+// To make the latter work too, 
+// non-const arrays are taken as non-const and stored as non-const as well.
+#if defined  BOOST_LAMBDA_PTR_ARITHMETIC_E1
+#error "Multiple defines of  BOOST_LAMBDA_PTR_ARITHMETIC_E1"
+#endif
+
+#define BOOST_LAMBDA_PTR_ARITHMETIC_E1(OPER_NAME, ACTION, CONSTB)           \
+template<class Arg, int N, class B>                                         \
+inline const                                                                \
+lambda_functor<                                                             \
+  lambda_functor_base<ACTION, tuple<lambda_functor<Arg>, CONSTB(&)[N]> >    \
+>                                                                           \
+OPER_NAME (const lambda_functor<Arg>& a, CONSTB(&b)[N])                     \
+{                                                                           \
+  return                                                                    \
+    lambda_functor_base<ACTION, tuple<lambda_functor<Arg>, CONSTB(&)[N]> >  \
+  (tuple<lambda_functor<Arg>, CONSTB(&)[N]>(a, b));                         \
+}
+
+
+#if defined  BOOST_LAMBDA_PTR_ARITHMETIC_E2
+#error "Multiple defines of  BOOST_LAMBDA_PTR_ARITHMETIC_E2"
+#endif
+
+#define BOOST_LAMBDA_PTR_ARITHMETIC_E2(OPER_NAME, ACTION, CONSTA)           \
+template<int N, class A, class Arg>                                         \
+inline const                                                                \
+lambda_functor<                                                             \
+  lambda_functor_base<ACTION, tuple<CONSTA(&)[N], lambda_functor<Arg> > >   \
+>                                                                           \
+OPER_NAME (CONSTA(&a)[N], const lambda_functor<Arg>& b)                     \
+{                                                                           \
+  return                                                                    \
+    lambda_functor_base<ACTION, tuple<CONSTA(&)[N], lambda_functor<Arg> > > \
+    (tuple<CONSTA(&)[N], lambda_functor<Arg> >(a, b));                      \
+}
+
+
+BOOST_LAMBDA_PTR_ARITHMETIC_E1(operator+, arithmetic_action<plus_action>, B)
+BOOST_LAMBDA_PTR_ARITHMETIC_E2(operator+, arithmetic_action<plus_action>, A)
+BOOST_LAMBDA_PTR_ARITHMETIC_E1(operator+, arithmetic_action<plus_action>,const B)
+BOOST_LAMBDA_PTR_ARITHMETIC_E2(operator+, arithmetic_action<plus_action>,const A)
+
+
+//BOOST_LAMBDA_PTR_ARITHMETIC_E1(operator-, arithmetic_action<minus_action>)
+// This is not needed, since the result of ptr-ptr is an rvalue anyway
+
+BOOST_LAMBDA_PTR_ARITHMETIC_E2(operator-, arithmetic_action<minus_action>, A)
+BOOST_LAMBDA_PTR_ARITHMETIC_E2(operator-, arithmetic_action<minus_action>, const A)
+
+
+#undef BOOST_LAMBDA_BE1
+#undef BOOST_LAMBDA_BE2
+#undef BOOST_LAMBDA_BE3
+#undef BOOST_LAMBDA_BE
+#undef BOOST_LAMBDA_COMMA_OPERATOR_NAME
+
+#undef BOOST_LAMBDA_PTR_ARITHMETIC_E1
+#undef BOOST_LAMBDA_PTR_ARITHMETIC_E2
+
+
+// ---------------------------------------------------------------------
+// unary operators -----------------------------------------------------
+// ---------------------------------------------------------------------
+
+#if defined BOOST_LAMBDA_UE
+#error "Multiple defines of BOOST_LAMBDA_UE"
+#endif
+
+#define BOOST_LAMBDA_UE(OPER_NAME, ACTION)                                 \
+template<class Arg>                                                        \
+inline const                                                               \
+lambda_functor<lambda_functor_base<ACTION, tuple<lambda_functor<Arg> > > > \
+OPER_NAME (const lambda_functor<Arg>& a)                                   \
+{                                                                          \
+  return                                                                   \
+    lambda_functor_base<ACTION, tuple<lambda_functor<Arg> > >              \
+    ( tuple<lambda_functor<Arg> >(a) );                                    \
+}
+
+
+BOOST_LAMBDA_UE(operator+, unary_arithmetic_action<plus_action>)
+BOOST_LAMBDA_UE(operator-, unary_arithmetic_action<minus_action>)
+BOOST_LAMBDA_UE(operator~, bitwise_action<not_action>)
+BOOST_LAMBDA_UE(operator!, logical_action<not_action>)
+BOOST_LAMBDA_UE(operator++, pre_increment_decrement_action<increment_action>)
+BOOST_LAMBDA_UE(operator--, pre_increment_decrement_action<decrement_action>)
+BOOST_LAMBDA_UE(operator*, other_action<contentsof_action>)
+BOOST_LAMBDA_UE(operator&, other_action<addressof_action>)
+
+#if defined BOOST_LAMBDA_POSTFIX_UE
+#error "Multiple defines of BOOST_LAMBDA_POSTFIX_UE"
+#endif
+
+#define BOOST_LAMBDA_POSTFIX_UE(OPER_NAME, ACTION)                         \
+template<class Arg>                                                        \
+inline const                                                               \
+lambda_functor<lambda_functor_base<ACTION, tuple<lambda_functor<Arg> > > > \
+OPER_NAME (const lambda_functor<Arg>& a, int)                              \
+{                                                                          \
+  return                                                                   \
+    lambda_functor_base<ACTION, tuple<lambda_functor<Arg> > >              \
+    ( tuple<lambda_functor<Arg> >(a) );                                    \
+}
+
+
+BOOST_LAMBDA_POSTFIX_UE(operator++, post_increment_decrement_action<increment_action>)
+BOOST_LAMBDA_POSTFIX_UE(operator--, post_increment_decrement_action<decrement_action>)
+
+#undef BOOST_LAMBDA_UE
+#undef BOOST_LAMBDA_POSTFIX_UE
+
+} // namespace lambda
+} // namespace boost
+
+#endif