New concept checking implementation.

2001-04-02  Phil Edwards  <pme@sources.redhat.com>

	New concept checking implementation.
	* docs/html/19_diagnostics/howto.html:  Document.
	* docs/html/17_intro/concept_check.diff:  New file, for reference.
	* include/bits/boost_concept_check.h:  New file from Boost.
	* include/bits/c++config:  Update comments.

	* include/bits/concept_check.h:  New file.
	* include/bits/concept_checks.h:  Removed.
	* include/bits/container_concepts.h:  Removed.
	* include/bits/sequence_concepts.h:  Removed.
	* include/bits/stl_iterator_base.h:  Removed; split into...
	* include/bits/stl_iterator_base_funcs.h:  ...this new file...
	* include/bits/stl_iterator_base_types.h:  ...and this new file.

	* include/bits/sbuf_iter.h:  Update to use new implementation.
	* include/bits/std_iterator.h:  Likewise.
	* include/bits/std_memory.h:  Likewise.
	* include/bits/stl_algo.h:  Likewise.
	* include/bits/stl_algobase.h:  Likewise.
	* include/bits/stl_construct.h:  Likewise.
	* include/bits/stl_deque.h:  Likewise.
	* include/bits/stl_heap.h:  Likewise.
	* include/bits/stl_list.h:  Likewise.
	* include/bits/stl_map.h:  Likewise.
	* include/bits/stl_multimap.h:  Likewise.
	* include/bits/stl_multiset.h:  Likewise.
	* include/bits/stl_numeric.h:  Likewise.
	* include/bits/stl_queue.h:  Likewise.
	* include/bits/stl_set.h:  Likewise.
	* include/bits/stl_stack.h:  Likewise.
	* include/bits/stl_uninitialized.h:  Likewise.
	* include/bits/stl_vector.h:  Likewise.
	* include/ext/hash_map:  Likewise.
	* include/ext/hash_set:  Likewise.
	* include/ext/slist:  Likewise.
	* include/ext/stl_hashtable.h:  Likewise.

	* src/Makefile.am (base_headers):  Update list of headers.
	* Makefile.in:  Regenerated.
	* src/Makefile.in:  Regenerated.
	* libio/Makefile.in:  Regenerated.
	* libmath/Makefile.in:  Regenerated.
	* libsupc++/Makefile.in:  Regenerated.
	* testsuite/Makefile.in:  Regenerated.

	* docs/html/install.html:  Update contact information.
	* docs/html/17_intro/howto.html:  Ditto.
	* docs/html/18_support/howto.html:  Ditto.
	* docs/html/20_util/howto.html:  Ditto.
	* docs/html/21_strings/howto.html:  Ditto.
	* docs/html/22_locale/howto.html:  Ditto.
	* docs/html/23_containers/howto.html:  Ditto.
	* docs/html/24_iterators/howto.html:  Ditto.
	* docs/html/25_algorithms/howto.html:  Ditto.
	* docs/html/26_numerics/howto.html:  Ditto.
	* docs/html/27_io/howto.html:  Ditto.
	* docs/html/faq/index.html:  Ditto, plus info on new checking code.
	* docs/html/ext/howto.html:  Ditto, plus info on new checking code.
	* docs/html/faq/index.txt:  Regenerated.

From-SVN: r41031

1 files changed, 887 insertions, 0 deletions

diff --git a/libstdc++-v3/include/bits/boost_concept_check.h b/libstdc++-v3/include/bits/boost_concept_check.h
new file mode 100644
index 0000000..1142e04
--- /dev/null
+++ b/libstdc++-v3/include/bits/boost_concept_check.h
@@ -0,0 +1,887 @@
+//
+// (C) Copyright Jeremy Siek 2000. Permission to copy, use, modify,
+// sell and distribute this software is granted provided this
+// copyright notice appears in all copies. This software is provided
+// "as is" without express or implied warranty, and with no claim as
+// to its suitability for any purpose.
+//
+
+// GCC Note:  based on version 1.12.0 of the Boost library.
+#ifndef BOOST_CONCEPT_CHECKS_HPP
+#define BOOST_CONCEPT_CHECKS_HPP
+
+#pragma GCC system_header
+#include <bits/stl_iterator_base_types.h>    // for traits and tags
+#include <utility>                           // for pair<>
+
+
+namespace boost {
+
+template <class T> void ignore_unused_variable_warning(const T&) { }
+
+template <class Concept>
+void function_requires()
+{
+  void (Concept::*x)() = &Concept::constraints;
+  ignore_unused_variable_warning(x);
+}
+
+
+#define BOOST_CLASS_REQUIRES(type_var, ns, concept) \
+  typedef void (ns::concept <type_var>::* func##type_var##concept)(); \
+  template <func##type_var##concept _Tp1> \
+  struct concept_checking_##type_var##concept { }; \
+  typedef concept_checking_##type_var##concept< \
+    &ns::concept <type_var>::constraints> \
+    concept_checking_typedef_##type_var##concept
+
+#define BOOST_CLASS_REQUIRES2(type_var1, type_var2, ns, concept) \
+  typedef void (ns::concept <type_var1,type_var2>::* func##type_var1##type_var2##concept)(); \
+  template <func##type_var1##type_var2##concept _Tp1> \
+  struct concept_checking_##type_var1##type_var2##concept { }; \
+  typedef concept_checking_##type_var1##type_var2##concept< \
+    &ns::concept <type_var1,type_var2>::constraints> \
+    concept_checking_typedef_##type_var1##type_var2##concept
+
+#define BOOST_CLASS_REQUIRES3(type_var1, type_var2, type_var3, ns, concept) \
+  typedef void (ns::concept <type_var1,type_var2,type_var3>::* func##type_var1##type_var2##type_var3##concept)(); \
+  template <func##type_var1##type_var2##type_var3##concept _Tp1> \
+  struct concept_checking_##type_var1##type_var2##type_var3##concept { }; \
+  typedef concept_checking_##type_var1##type_var2##type_var3##concept< \
+    &ns::concept <type_var1,type_var2,type_var3>::constraints>  \
+  concept_checking_typedef_##type_var1##type_var2##type_var3##concept
+
+#define BOOST_CLASS_REQUIRES4(type_var1, type_var2, type_var3, type_var4, ns, concept) \
+  typedef void (ns::concept <type_var1,type_var2,type_var3,type_var4>::* func##type_var1##type_var2##type_var3##type_var4##concept)(); \
+  template <func##type_var1##type_var2##type_var3##type_var4##concept _Tp1> \
+  struct concept_checking_##type_var1##type_var2##type_var3##type_var4##concept { }; \
+  typedef concept_checking_##type_var1##type_var2##type_var3##type_var4##concept< \
+    &ns::concept <type_var1,type_var2,type_var3,type_var4>::constraints>  \
+    concept_checking_typedef_##type_var1##type_var2##type_var3##type_var4##concept
+
+
+template <class T, class U>
+struct require_same { };
+
+template <class T>
+struct require_same<T,T> { typedef T type; };
+
+  template <class T, class U>
+  struct SameTypeConcept
+  {
+    void constraints() {
+      typedef typename require_same<T, U>::type req;
+    }
+  };
+
+  template <class T>
+  struct IntegerConcept {
+    void constraints() { 
+      errortype_must_be_an_integer_type();
+    }
+  };
+  template <> struct IntegerConcept<short> { void constraints() {} };
+  template <> struct IntegerConcept<unsigned short> { void constraints() {} };
+  template <> struct IntegerConcept<int> { void constraints() {} };
+  template <> struct IntegerConcept<unsigned int> { void constraints() {} };
+  template <> struct IntegerConcept<long> { void constraints() {} };
+  template <> struct IntegerConcept<unsigned long> { void constraints() {} };
+  // etc.
+
+  template <class T>
+  struct SignedIntegerConcept {
+    void constraints() { 
+      errortype_must_be_a_signed_integer_type();
+    }
+  };
+  template <> struct SignedIntegerConcept<short> { void constraints() {} };
+  template <> struct SignedIntegerConcept<int> { void constraints() {} };
+  template <> struct SignedIntegerConcept<long> { void constraints() {} };
+  // etc.
+
+  template <class T>
+  struct UnsignedIntegerConcept {
+    void constraints() { 
+      errortype_must_be_an_unsigned_integer_type();
+    }
+  };
+  template <> struct UnsignedIntegerConcept<unsigned short>
+    { void constraints() {} };
+  template <> struct UnsignedIntegerConcept<unsigned int>
+    { void constraints() {} };
+  template <> struct UnsignedIntegerConcept<unsigned long>
+    { void constraints() {} };
+  // etc.
+
+  //===========================================================================
+  // Basic Concepts
+
+  template <class TT>
+  struct DefaultConstructibleConcept
+  {
+    void constraints() {
+      TT a;               // require default constructor
+      ignore_unused_variable_warning(a);
+    }
+  };
+
+  template <class TT>
+  struct AssignableConcept
+  {
+    void constraints() {
+      a = a;              // require assignment operator
+      const_constraints(a);
+    }
+    void const_constraints(const TT& b) {
+      a = b;              // const required for argument to assignment
+    }
+    TT a;
+  };
+
+  template <class TT>
+  struct CopyConstructibleConcept
+  {
+    void constraints() {
+      TT a(b);            // require copy constructor
+      TT* ptr = &a;       // require address of operator
+      const_constraints(a);
+      ignore_unused_variable_warning(ptr);
+    }
+    void const_constraints(const TT& a) {
+      TT c(a);            // require const copy constructor
+      const TT* ptr = &a; // require const address of operator
+      ignore_unused_variable_warning(c);
+      ignore_unused_variable_warning(ptr);
+    }
+    TT b;
+  };
+
+  // The SGI STL version of Assignable requires copy constructor and operator=
+  template <class TT>
+  struct SGIAssignableConcept
+  {
+    void constraints() {
+      TT b(a);
+      a = a;              // require assignment operator
+      const_constraints(a);
+      ignore_unused_variable_warning(b);
+    }
+    void const_constraints(const TT& b) {
+      TT c(b);
+      a = b;              // const required for argument to assignment
+      ignore_unused_variable_warning(c);
+    }
+    TT a;
+  };
+
+  template <class X, class Y>
+  struct ConvertibleConcept
+  {
+    void constraints() {
+      Y y = x;
+      ignore_unused_variable_warning(y);
+    }
+    X x;
+  };
+
+  // The C++ standard requirements for many concepts talk about return
+  // types that must be "convertible to bool".  The problem with this
+  // requirement is that it leaves the door open for evil proxies that
+  // define things like operator|| with strange return types.  Two
+  // possible solutions are:
+  // 1) require the return type to be exactly bool
+  // 2) stay with convertible to bool, and also
+  //    specify stuff about all the logical operators.
+  // For now we just test for convertible to bool.
+  template <class TT>
+  void require_boolean_expr(const TT& t) {
+    bool x = t;
+    ignore_unused_variable_warning(x);
+  }
+
+  template <class TT>
+  struct EqualityComparableConcept
+  {
+    void constraints() {
+      require_boolean_expr(a == b);
+      require_boolean_expr(a != b);
+    }
+    TT a, b;
+  };
+
+  template <class TT>
+  struct LessThanComparableConcept
+  {
+    void constraints() {
+      require_boolean_expr(a < b);
+    }
+    TT a, b;
+  };
+
+  // This is equivalent to SGI STL's LessThanComparable.
+  template <class TT>
+  struct ComparableConcept
+  {
+    void constraints() {
+      require_boolean_expr(a < b);
+      require_boolean_expr(a > b);
+      require_boolean_expr(a <= b);
+      require_boolean_expr(a >= b);
+    }
+    TT a, b;
+  };
+
+#define BOOST_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(OP,NAME) \
+  template <class First, class Second> \
+  struct NAME { \
+    void constraints() { (void)constraints_(); } \
+    bool constraints_() {  \
+      return  a OP b; \
+    } \
+    First a; \
+    Second b; \
+  }
+
+#define BOOST_DEFINE_BINARY_OPERATOR_CONSTRAINT(OP,NAME) \
+  template <class Ret, class First, class Second> \
+  struct NAME { \
+    void constraints() { (void)constraints_(); } \
+    Ret constraints_() {  \
+      return a OP b; \
+    } \
+    First a; \
+    Second b; \
+  }
+
+  BOOST_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(==, EqualOpConcept);
+  BOOST_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(!=, NotEqualOpConcept);
+  BOOST_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(<, LessThanOpConcept);
+  BOOST_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(<=, LessEqualOpConcept);
+  BOOST_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(>, GreaterThanOpConcept);
+  BOOST_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(>=, GreaterEqualOpConcept);
+
+  BOOST_DEFINE_BINARY_OPERATOR_CONSTRAINT(+, PlusOpConcept);
+  BOOST_DEFINE_BINARY_OPERATOR_CONSTRAINT(*, TimesOpConcept);
+  BOOST_DEFINE_BINARY_OPERATOR_CONSTRAINT(/, DivideOpConcept);
+  BOOST_DEFINE_BINARY_OPERATOR_CONSTRAINT(-, SubtractOpConcept);
+  BOOST_DEFINE_BINARY_OPERATOR_CONSTRAINT(%, ModOpConcept);
+
+#undef BOOST_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT
+#undef BOOST_DEFINE_BINARY_OPERATOR_CONSTRAINT
+
+  //===========================================================================
+  // Function Object Concepts
+
+  template <class Func, class Return>
+  struct GeneratorConcept
+  {
+    void constraints() {
+      const Return& r = f();   // require operator() member function
+      ignore_unused_variable_warning(r);
+    }
+    Func f;
+  };
+
+
+  template <class Func>
+  struct GeneratorConcept<Func,void>
+  {
+    void constraints() {
+      f();              // require operator() member function
+    }
+    Func f;
+  };
+
+  template <class Func, class Return, class Arg>
+  struct UnaryFunctionConcept
+  {
+    void constraints() {
+      r = f(arg); // require operator()
+    }
+    Func f;
+    Arg arg;
+    Return r;
+  };
+
+  template <class Func, class Arg>
+  struct UnaryFunctionConcept<Func, void, Arg> {
+    void constraints() { 
+      f(arg);                 // require operator()
+    }
+    Func f;
+  };
+
+  template <class Func, class Return, class First, class Second>
+  struct BinaryFunctionConcept
+  {
+    void constraints() { 
+      r = f(first, second); // require operator()
+    }
+    Func f;
+    First first;
+    Second second;
+    Return r;
+  };
+
+  template <class Func, class First, class Second>
+  struct BinaryFunctionConcept<Func, void, First, Second>
+  {
+    void constraints() {
+      f(first, second); // require operator()
+    }
+    Func f;
+    First first;
+    Second second;
+  };
+
+  template <class Func, class Arg>
+  struct UnaryPredicateConcept
+  {
+    void constraints() {
+      require_boolean_expr(f(arg)); // require operator() returning bool
+    }
+    Func f;
+    Arg arg;
+  };
+
+  template <class Func, class First, class Second>
+  struct BinaryPredicateConcept
+  {
+    void constraints() {
+      require_boolean_expr(f(a, b)); // require operator() returning bool
+    }
+    Func f;
+    First a;
+    Second b;
+  };
+
+  // use this when functor is used inside a container class like std::set
+  template <class Func, class First, class Second>
+  struct Const_BinaryPredicateConcept {
+    void constraints() { 
+      const_constraints(f);
+    }
+    void const_constraints(const Func& fun) {
+      function_requires<BinaryPredicateConcept<Func, First, Second> >();
+      // operator() must be a const member function
+      require_boolean_expr(fun(a, b));
+    }
+    Func f;
+    First a;
+    Second b;
+  };
+
+  //===========================================================================
+  // Iterator Concepts
+
+  template <class TT>
+  struct TrivialIteratorConcept
+  {
+    void constraints() {
+      function_requires< AssignableConcept<TT> >();
+      function_requires< DefaultConstructibleConcept<TT> >();
+      function_requires< EqualityComparableConcept<TT> >();
+      typedef typename std::iterator_traits<TT>::value_type V;
+      (void)*i;           // require dereference operator
+    }
+    TT i;
+  };
+
+  template <class TT>
+  struct Mutable_TrivialIteratorConcept
+  {
+    void constraints() {
+      function_requires< TrivialIteratorConcept<TT> >();
+      *i = *j;            // require dereference and assignment
+    }
+    TT i, j;
+  };
+
+  template <class TT>
+  struct InputIteratorConcept
+  {
+    void constraints() {
+      function_requires< TrivialIteratorConcept<TT> >();
+      // require iterator_traits typedef's
+      typedef typename std::iterator_traits<TT>::difference_type D;
+      function_requires< SignedIntegerConcept<D> >();
+      typedef typename std::iterator_traits<TT>::reference R;
+      typedef typename std::iterator_traits<TT>::pointer P;
+      typedef typename std::iterator_traits<TT>::iterator_category C;
+      function_requires< ConvertibleConcept<
+        typename std::iterator_traits<TT>::iterator_category,
+        std::input_iterator_tag> >();
+      ++i;                // require preincrement operator
+      i++;                // require postincrement operator
+    }
+    TT i;
+  };
+
+  template <class TT, class ValueT>
+  struct OutputIteratorConcept
+  {
+    void constraints() {
+      function_requires< AssignableConcept<TT> >();
+      ++i;                // require preincrement operator
+      i++;                // require postincrement operator
+      *i++ = t;           // require postincrement and assignment
+    }
+    TT i;
+    ValueT t;
+  };
+
+  template <class TT>
+  struct ForwardIteratorConcept
+  {
+    void constraints() {
+      function_requires< InputIteratorConcept<TT> >();
+      function_requires< ConvertibleConcept<
+        typename std::iterator_traits<TT>::iterator_category,
+        std::forward_iterator_tag> >();
+      typedef typename std::iterator_traits<TT>::reference reference;
+      reference r = *i;
+      ignore_unused_variable_warning(r);
+    }
+    TT i;
+  };
+
+  template <class TT>
+  struct Mutable_ForwardIteratorConcept
+  {
+    void constraints() {
+      function_requires< ForwardIteratorConcept<TT> >();
+      *i++ = *i;         // require postincrement and assignment
+    }
+    TT i;
+  };
+
+  template <class TT>
+  struct BidirectionalIteratorConcept
+  {
+    void constraints() {
+      function_requires< ForwardIteratorConcept<TT> >();
+      function_requires< ConvertibleConcept<
+        typename std::iterator_traits<TT>::iterator_category,
+        std::bidirectional_iterator_tag> >();
+      --i;                // require predecrement operator
+      i--;                // require postdecrement operator
+    }
+    TT i;
+  };
+
+  template <class TT>
+  struct Mutable_BidirectionalIteratorConcept
+  {
+    void constraints() {
+      function_requires< BidirectionalIteratorConcept<TT> >();
+      function_requires< Mutable_ForwardIteratorConcept<TT> >();
+      *i-- = *i;                  // require postdecrement and assignment
+    }
+    TT i;
+  };
+
+
+  template <class TT>
+  struct RandomAccessIteratorConcept
+  {
+    void constraints() {
+      function_requires< BidirectionalIteratorConcept<TT> >();
+      function_requires< ComparableConcept<TT> >();
+      function_requires< ConvertibleConcept<
+        typename std::iterator_traits<TT>::iterator_category,
+        std::random_access_iterator_tag> >();
+      typedef typename std::iterator_traits<TT>::reference R;
+
+      i += n;             // require assignment addition operator
+      i = i + n; i = n + i; // require addition with difference type
+      i -= n;             // require assignment subtraction operator
+      i = i - n;                  // require subtraction with difference type
+      n = i - j;                  // require difference operator
+      (void)i[n];                 // require element access operator
+    }
+    TT a, b;
+    TT i, j;
+    typename std::iterator_traits<TT>::difference_type n;
+  };
+
+  template <class TT>
+  struct Mutable_RandomAccessIteratorConcept
+  {
+    void constraints() {
+      function_requires< RandomAccessIteratorConcept<TT> >();
+      function_requires< Mutable_BidirectionalIteratorConcept<TT> >();
+      i[n] = *i;                  // require element access and assignment
+    }
+    TT i;
+    typename std::iterator_traits<TT>::difference_type n;
+  };
+
+  //===========================================================================
+  // Container Concepts
+
+  template <class Container>
+  struct ContainerConcept
+  {
+    typedef typename Container::value_type value_type;
+    typedef typename Container::difference_type difference_type;
+    typedef typename Container::size_type size_type;
+    typedef typename Container::const_reference const_reference;
+    typedef typename Container::const_pointer const_pointer;
+    typedef typename Container::const_iterator const_iterator;
+
+    void constraints() {
+      function_requires< InputIteratorConcept<const_iterator> >();
+      function_requires< AssignableConcept<Container> >();
+      const Container c;
+      i = c.begin();
+      i = c.end();
+      n = c.size();
+      n = c.max_size();
+      b = c.empty();
+    }
+    bool b;
+    const_iterator i;
+    size_type n;
+  };
+
+  template <class Container>
+  struct Mutable_ContainerConcept
+  {
+    typedef typename Container::value_type value_type;
+    typedef typename Container::reference reference;
+    typedef typename Container::iterator iterator;
+    typedef typename Container::pointer pointer;
+    
+    void constraints() {
+      function_requires< ContainerConcept<Container> >();
+      function_requires< AssignableConcept<value_type> >();
+      function_requires< InputIteratorConcept<iterator> >();
+
+      i = c.begin();
+      i = c.end();
+      c.swap(c2);
+    }
+    iterator i;
+    Container c, c2;
+  };
+
+  template <class ForwardContainer>
+  struct ForwardContainerConcept
+  {
+    void constraints() {
+      function_requires< ContainerConcept<ForwardContainer> >();
+      typedef typename ForwardContainer::const_iterator const_iterator;
+      function_requires< ForwardIteratorConcept<const_iterator> >();
+    }
+  };  
+
+  template <class ForwardContainer>
+  struct Mutable_ForwardContainerConcept
+  {
+    void constraints() {
+      function_requires< ForwardContainerConcept<ForwardContainer> >();
+      function_requires< Mutable_ContainerConcept<ForwardContainer> >();
+      typedef typename ForwardContainer::iterator iterator;
+      function_requires< Mutable_ForwardIteratorConcept<iterator> >();
+    }
+  };  
+
+  template <class ReversibleContainer>
+  struct ReversibleContainerConcept
+  {
+    typedef typename ReversibleContainer::const_iterator const_iterator;
+    typedef typename ReversibleContainer::const_reverse_iterator
+      const_reverse_iterator;
+
+    void constraints() {
+      function_requires< ForwardContainerConcept<ReversibleContainer> >();
+      function_requires< BidirectionalIteratorConcept<const_iterator> >();
+      function_requires< BidirectionalIteratorConcept<const_reverse_iterator> >();
+
+      const ReversibleContainer c;
+      const_reverse_iterator i = c.rbegin();
+      i = c.rend();
+    }
+  };
+
+  template <class ReversibleContainer>
+  struct Mutable_ReversibleContainerConcept
+  {
+    typedef typename ReversibleContainer::iterator iterator;
+    typedef typename ReversibleContainer::reverse_iterator reverse_iterator;
+
+    void constraints() {
+      function_requires< ReversibleContainerConcept<ReversibleContainer> >();
+      function_requires< Mutable_ForwardContainerConcept<ReversibleContainer> >();
+      function_requires< Mutable_BidirectionalIteratorConcept<iterator> >();
+      function_requires< Mutable_BidirectionalIteratorConcept<reverse_iterator> >();
+
+      reverse_iterator i = c.rbegin();
+      i = c.rend();
+    }
+    ReversibleContainer c;
+  };
+
+  template <class RandomAccessContainer>
+  struct RandomAccessContainerConcept
+  {
+    typedef typename RandomAccessContainer::size_type size_type;
+    typedef typename RandomAccessContainer::const_reference const_reference;
+    typedef typename RandomAccessContainer::const_iterator const_iterator;
+    typedef typename RandomAccessContainer::const_reverse_iterator
+      const_reverse_iterator;
+
+    void constraints() {
+      function_requires< ReversibleContainerConcept<RandomAccessContainer> >();
+      function_requires< RandomAccessIteratorConcept<const_iterator> >();
+      function_requires< RandomAccessIteratorConcept<const_reverse_iterator> >();
+
+      const RandomAccessContainer c;
+      const_reference r = c[n];
+      ignore_unused_variable_warning(r);
+    }
+    size_type n;
+  };
+
+  template <class RandomAccessContainer>
+  struct Mutable_RandomAccessContainerConcept
+  {
+    typedef typename RandomAccessContainer::size_type size_type;
+    typedef typename RandomAccessContainer::reference reference;
+    typedef typename RandomAccessContainer::iterator iterator;
+    typedef typename RandomAccessContainer::reverse_iterator reverse_iterator;
+
+    void constraints() {
+      function_requires< RandomAccessContainerConcept<RandomAccessContainer> >();
+      function_requires< Mutable_ReversibleContainerConcept<RandomAccessContainer> >();
+      function_requires< Mutable_RandomAccessIteratorConcept<iterator> >();
+      function_requires< Mutable_RandomAccessIteratorConcept<reverse_iterator> >();
+
+      reference r = c[i];
+      ignore_unused_variable_warning(r);
+    }
+    size_type i;
+    RandomAccessContainer c;
+  };
+
+  // A Sequence is inherently mutable
+  template <class Sequence>
+  struct SequenceConcept
+  {
+
+    typedef typename Sequence::reference reference;
+    typedef typename Sequence::const_reference const_reference;
+
+    void constraints() {
+      // Matt Austern's book puts DefaultConstructible here, the C++
+      // standard places it in Container
+      //    function_requires< DefaultConstructible<Sequence> >();
+      function_requires< Mutable_ForwardContainerConcept<Sequence> >();
+      function_requires< DefaultConstructibleConcept<Sequence> >();
+
+      Sequence 
+        c(n),
+        c2(n, t),
+        c3(first, last);
+
+      c.insert(p, t);
+      c.insert(p, n, t);
+      c.insert(p, first, last);
+
+      c.erase(p);
+      c.erase(p, q);
+
+      reference r = c.front();
+
+      ignore_unused_variable_warning(c);
+      ignore_unused_variable_warning(c2);
+      ignore_unused_variable_warning(c3);
+      ignore_unused_variable_warning(r);
+      const_constraints(c);
+    }
+    void const_constraints(const Sequence& c) {
+      const_reference r = c.front();
+      ignore_unused_variable_warning(r);
+    }
+    typename Sequence::value_type t;
+    typename Sequence::size_type n;
+    typename Sequence::value_type* first, *last;
+    typename Sequence::iterator p, q;
+  };
+
+  template <class FrontInsertionSequence>
+  struct FrontInsertionSequenceConcept
+  {
+    void constraints() {
+      function_requires< SequenceConcept<FrontInsertionSequence> >();
+
+      c.push_front(t);
+      c.pop_front();
+    }
+    FrontInsertionSequence c;
+    typename FrontInsertionSequence::value_type t;
+  };
+
+  template <class BackInsertionSequence>
+  struct BackInsertionSequenceConcept
+  {
+    typedef typename BackInsertionSequence::reference reference;
+    typedef typename BackInsertionSequence::const_reference const_reference;
+
+    void constraints() {
+      function_requires< SequenceConcept<BackInsertionSequence> >();
+
+      c.push_back(t);
+      c.pop_back();
+      reference r = c.back();
+      ignore_unused_variable_warning(r);
+    }
+    void const_constraints(const BackInsertionSequence& c) {
+      const_reference r = c.back();
+      ignore_unused_variable_warning(r);
+    };
+    BackInsertionSequence c;
+    typename BackInsertionSequence::value_type t;
+  };
+
+  template <class AssociativeContainer>
+  struct AssociativeContainerConcept
+  {
+    void constraints() {
+      function_requires< ForwardContainerConcept<AssociativeContainer> >();
+      function_requires< DefaultConstructibleConcept<AssociativeContainer> >();
+    
+      i = c.find(k);
+      r = c.equal_range(k);
+      c.erase(k);
+      c.erase(i);
+      c.erase(r.first, r.second);
+      const_constraints(c);
+    }
+    void const_constraints(const AssociativeContainer& c) {
+      ci = c.find(k);
+      n = c.count(k);
+      cr = c.equal_range(k);
+    }
+    typedef typename AssociativeContainer::iterator iterator;
+    typedef typename AssociativeContainer::const_iterator const_iterator;
+
+    AssociativeContainer c;
+    iterator i;
+    std::pair<iterator,iterator> r;
+    const_iterator ci;
+    std::pair<const_iterator,const_iterator> cr;
+    typename AssociativeContainer::key_type k;
+    typename AssociativeContainer::size_type n;
+  };
+
+  template <class UniqueAssociativeContainer>
+  struct UniqueAssociativeContainerConcept
+  {
+    void constraints() {
+      function_requires< AssociativeContainerConcept<UniqueAssociativeContainer> >();
+    
+      UniqueAssociativeContainer c(first, last);
+      
+      pos_flag = c.insert(t);
+      c.insert(first, last);
+
+      ignore_unused_variable_warning(c);
+    }
+    std::pair<typename UniqueAssociativeContainer::iterator, bool> pos_flag;
+    typename UniqueAssociativeContainer::value_type t;
+    typename UniqueAssociativeContainer::value_type* first, *last;
+  };
+
+  template <class MultipleAssociativeContainer>
+  struct MultipleAssociativeContainerConcept
+  {
+    void constraints() {
+      function_requires< AssociativeContainerConcept<MultipleAssociativeContainer> >();
+
+      MultipleAssociativeContainer c(first, last);
+      
+      pos = c.insert(t);
+      c.insert(first, last);
+
+      ignore_unused_variable_warning(c);
+      ignore_unused_variable_warning(pos);
+    }
+    typename MultipleAssociativeContainer::iterator pos;
+    typename MultipleAssociativeContainer::value_type t;
+    typename MultipleAssociativeContainer::value_type* first, *last;
+  };
+
+  template <class SimpleAssociativeContainer>
+  struct SimpleAssociativeContainerConcept
+  {
+    void constraints() {
+      function_requires< AssociativeContainerConcept<SimpleAssociativeContainer> >();
+      typedef typename SimpleAssociativeContainer::key_type key_type;
+      typedef typename SimpleAssociativeContainer::value_type value_type;
+      typedef typename require_same<key_type, value_type>::type req;
+    }
+  };
+
+  template <class SimpleAssociativeContainer>
+  struct PairAssociativeContainerConcept
+  {
+    void constraints() {
+      function_requires< AssociativeContainerConcept<SimpleAssociativeContainer> >();
+      typedef typename SimpleAssociativeContainer::key_type key_type;
+      typedef typename SimpleAssociativeContainer::value_type value_type;
+      typedef typename SimpleAssociativeContainer::mapped_type mapped_type;
+      typedef std::pair<const key_type, mapped_type> required_value_type;
+      typedef typename require_same<value_type, required_value_type>::type req;
+    }
+  };
+
+  template <class SortedAssociativeContainer>
+  struct SortedAssociativeContainerConcept
+  {
+    void constraints() {
+      function_requires< AssociativeContainerConcept<SortedAssociativeContainer> >();
+      function_requires< ReversibleContainerConcept<SortedAssociativeContainer> >();
+
+      SortedAssociativeContainer 
+        c(kc),
+        c2(first, last),
+        c3(first, last, kc);
+
+      p = c.upper_bound(k);
+      p = c.lower_bound(k);
+      r = c.equal_range(k);
+      
+      c.insert(p, t);
+      
+      ignore_unused_variable_warning(c);
+      ignore_unused_variable_warning(c2);
+      ignore_unused_variable_warning(c3);
+    }
+    void const_constraints(const SortedAssociativeContainer& c) {
+      kc = c.key_comp();
+      vc = c.value_comp();
+
+      cp = c.upper_bound(k);
+      cp = c.lower_bound(k);
+      cr = c.equal_range(k);
+    }
+    typename SortedAssociativeContainer::key_compare kc;
+    typename SortedAssociativeContainer::value_compare vc;
+    typename SortedAssociativeContainer::value_type t;
+    typename SortedAssociativeContainer::key_type k;
+    typedef typename SortedAssociativeContainer::iterator iterator;
+    typedef typename SortedAssociativeContainer::const_iterator const_iterator;
+    iterator p;
+    const_iterator cp;
+    std::pair<iterator,iterator> r;
+    std::pair<const_iterator,const_iterator> cr;
+    typename SortedAssociativeContainer::value_type* first, *last;
+  };
+
+  // HashedAssociativeContainer
+
+} // namespace boost
+
+#endif // BOOST_CONCEPT_CHECKS_HPP
+