forked from boostorg/optional
Patches for Codegear C++ Builder 2009
[SVN r48981]
This commit is contained in:
@@ -22,11 +22,9 @@ import testing ;
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[ run optional_test_inplace.cpp ]
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[ run optional_test_io.cpp ]
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[ compile-fail optional_test_fail1.cpp ]
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[ compile-fail optional_test_fail2.cpp ]
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[ compile-fail optional_test_fail3a.cpp ]
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[ compile-fail optional_test_fail3b.cpp ]
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[ compile-fail optional_test_ref_fail1.cpp ]
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[ compile-fail optional_test_ref_fail2.cpp ]
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[ compile-fail optional_test_ref_fail3.cpp ]
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[ compile-fail optional_test_ref_fail4.cpp ]
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[ compile-fail optional_test_inplace_fail.cpp ]
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+392
-5
@@ -1,4 +1,4 @@
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// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
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// Copyright (C) 2003, 2008 Fernando Luis Cacciola Carballal.
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//
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// Use, modification, and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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@@ -9,6 +9,9 @@
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// You are welcome to contact the author at:
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// fernando_cacciola@hotmail.com
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//
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// Revisions:
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// 12 May 2008 (added more swap tests)
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//
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#include<iostream>
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#include<stdexcept>
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#include<string>
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@@ -16,6 +19,8 @@
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#define BOOST_ENABLE_ASSERT_HANDLER
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#include "boost/bind/apply.hpp" // Included just to test proper interaction with boost::apply<> as reported by Daniel Wallin
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#include "boost/mpl/bool.hpp"
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#include "boost/mpl/bool_fwd.hpp" // For mpl::true_ and mpl::false_
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#include "boost/optional/optional.hpp"
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@@ -704,16 +709,16 @@ void test_relops( T const* )
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{
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TRACE( std::endl << BOOST_CURRENT_FUNCTION );
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T v0(18);
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T v1(19);
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T v2(19);
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T v0(0);
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T v1(1);
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T v2(1);
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optional<T> def0 ;
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optional<T> def1 ;
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optional<T> opt0(v0);
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optional<T> opt1(v1);
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optional<T> opt2(v2);
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// Check identity
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BOOST_CHECK ( def0 == def0 ) ;
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BOOST_CHECK ( opt0 == opt0 ) ;
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@@ -751,6 +756,33 @@ void test_relops( T const* )
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BOOST_CHECK ( opt1 > opt0 ) ;
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BOOST_CHECK ( opt1 <= opt2 ) ;
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BOOST_CHECK ( opt1 >= opt0 ) ;
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// Compare against a value directly
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BOOST_CHECK ( opt0 == v0 ) ;
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BOOST_CHECK ( opt0 != v1 ) ;
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BOOST_CHECK ( opt1 == v2 ) ;
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BOOST_CHECK ( opt0 < v1 ) ;
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BOOST_CHECK ( opt1 > v0 ) ;
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BOOST_CHECK ( opt1 <= v2 ) ;
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BOOST_CHECK ( opt1 >= v0 ) ;
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BOOST_CHECK ( v0 != opt1 ) ;
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BOOST_CHECK ( v1 == opt2 ) ;
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BOOST_CHECK ( v0 < opt1 ) ;
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BOOST_CHECK ( v1 > opt0 ) ;
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BOOST_CHECK ( v1 <= opt2 ) ;
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BOOST_CHECK ( v1 >= opt0 ) ;
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BOOST_CHECK ( def0 != v0 ) ;
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BOOST_CHECK ( !(def0 == v0) ) ;
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BOOST_CHECK ( def0 < v0 ) ;
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BOOST_CHECK ( !(def0 > v0) ) ;
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BOOST_CHECK ( def0 <= v0 ) ;
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BOOST_CHECK ( !(def0 >= v0) ) ;
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BOOST_CHECK ( v0 != def0 ) ;
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BOOST_CHECK ( !(v0 == def0) ) ;
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BOOST_CHECK ( !(v0 < def0) ) ;
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BOOST_CHECK ( v0 > def0 ) ;
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BOOST_CHECK ( !(v0 <= def0) ) ;
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BOOST_CHECK ( v0 >= opt0 ) ;
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}
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template<class T>
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@@ -767,6 +799,10 @@ void test_none( T const* )
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BOOST_CHECK ( def0 == none ) ;
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BOOST_CHECK ( non_def != none ) ;
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BOOST_CHECK ( !def1 ) ;
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BOOST_CHECK ( !(non_def < none) ) ;
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BOOST_CHECK ( non_def > none ) ;
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BOOST_CHECK ( !(non_def <= none) ) ;
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BOOST_CHECK ( non_def >= none ) ;
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non_def = none ;
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BOOST_CHECK ( !non_def ) ;
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@@ -774,6 +810,24 @@ void test_none( T const* )
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test_default_implicit_construction(T(1),none);
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}
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template<class T>
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void test_arrow( T const* )
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{
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TRACE( std::endl << BOOST_CURRENT_FUNCTION );
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T a(1234);
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optional<T> oa(a) ;
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optional<T> const coa(a) ;
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BOOST_CHECK ( coa->V() == 1234 ) ;
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oa->V() = 4321 ;
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BOOST_CHECK ( a.V() = 1234 ) ;
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BOOST_CHECK ( (*oa).V() = 4321 ) ;
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}
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void test_with_builtin_types()
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{
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TRACE( std::endl << BOOST_CURRENT_FUNCTION );
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@@ -804,6 +858,7 @@ void test_with_class_type()
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test_throwing_swap( ARG(X) );
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test_relops( ARG(X) ) ;
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test_none( ARG(X) ) ;
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test_arrow( ARG(X) ) ;
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BOOST_CHECK ( X::count == 0 ) ;
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}
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@@ -877,6 +932,337 @@ void test_conversions2()
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BOOST_CHECK(*get(&opt1) == static_cast<double>(f));
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}
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namespace optional_swap_test
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{
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class default_ctor_exception : public std::exception {} ;
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class copy_ctor_exception : public std::exception {} ;
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class assignment_exception : public std::exception {} ;
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//
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// Base class for swap test classes. Its assignment should not be called, when swapping
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// optional<T> objects. (The default std::swap would do so.)
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//
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class base_class_with_forbidden_assignment
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{
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public:
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base_class_with_forbidden_assignment & operator=(const base_class_with_forbidden_assignment &)
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{
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BOOST_CHECK(!"The assignment should not be used while swapping!");
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throw assignment_exception();
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}
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virtual ~base_class_with_forbidden_assignment() {}
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};
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//
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// Class without default constructor
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//
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class class_without_default_ctor : public base_class_with_forbidden_assignment
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{
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public:
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char data;
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explicit class_without_default_ctor(char arg) : data(arg) {}
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};
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//
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// Class whose default constructor should not be used by optional::swap!
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//
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class class_whose_default_ctor_should_not_be_used : public base_class_with_forbidden_assignment
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{
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public:
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char data;
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explicit class_whose_default_ctor_should_not_be_used(char arg) : data(arg) {}
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class_whose_default_ctor_should_not_be_used()
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{
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BOOST_CHECK(!"This default constructor should not be used while swapping!");
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throw default_ctor_exception();
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}
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};
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//
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// Class whose default constructor should be used by optional::swap.
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// Its copy constructor should be avoided!
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//
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class class_whose_default_ctor_should_be_used : public base_class_with_forbidden_assignment
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{
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public:
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char data;
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explicit class_whose_default_ctor_should_be_used(char arg) : data(arg) { }
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class_whose_default_ctor_should_be_used() : data('\0') { }
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class_whose_default_ctor_should_be_used(const class_whose_default_ctor_should_be_used &)
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{
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BOOST_CHECK(!"This copy constructor should not be used while swapping!");
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throw copy_ctor_exception();
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}
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};
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//
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// Class template whose default constructor should be used by optional::swap.
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// Its copy constructor should be avoided!
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//
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template <class T>
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class template_whose_default_ctor_should_be_used : public base_class_with_forbidden_assignment
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{
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public:
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T data;
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explicit template_whose_default_ctor_should_be_used(T arg) : data(arg) { }
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template_whose_default_ctor_should_be_used() : data('\0') { }
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template_whose_default_ctor_should_be_used(const template_whose_default_ctor_should_be_used &)
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{
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BOOST_CHECK(!"This copy constructor should not be used while swapping!");
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throw copy_ctor_exception();
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}
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};
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//
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// Class whose explicit constructor should be used by optional::swap.
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// Its other constructors should be avoided!
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//
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class class_whose_explicit_ctor_should_be_used : public base_class_with_forbidden_assignment
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{
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public:
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char data;
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explicit class_whose_explicit_ctor_should_be_used(char arg) : data(arg) { }
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class_whose_explicit_ctor_should_be_used()
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{
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BOOST_CHECK(!"This default constructor should not be used while swapping!");
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throw default_ctor_exception();
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}
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class_whose_explicit_ctor_should_be_used(const class_whose_explicit_ctor_should_be_used &)
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{
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BOOST_CHECK(!"This copy constructor should not be used while swapping!");
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throw copy_ctor_exception();
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}
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};
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void swap(class_whose_default_ctor_should_not_be_used & lhs, class_whose_default_ctor_should_not_be_used & rhs)
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{
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std::swap(lhs.data, rhs.data);
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}
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void swap(class_whose_default_ctor_should_be_used & lhs, class_whose_default_ctor_should_be_used & rhs)
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{
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std::swap(lhs.data, rhs.data);
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}
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void swap(class_without_default_ctor & lhs, class_without_default_ctor & rhs)
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{
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std::swap(lhs.data, rhs.data);
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}
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void swap(class_whose_explicit_ctor_should_be_used & lhs, class_whose_explicit_ctor_should_be_used & rhs)
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{
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std::swap(lhs.data, rhs.data);
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}
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template <class T>
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void swap(template_whose_default_ctor_should_be_used<T> & lhs, template_whose_default_ctor_should_be_used<T> & rhs)
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{
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std::swap(lhs.data, rhs.data);
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}
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//
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// optional<T>::swap should be customized when neither the copy constructor
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// nor the default constructor of T are supposed to be used when swapping, e.g.,
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// for the following type T = class_whose_explicit_ctor_should_be_used.
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//
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void swap(boost::optional<class_whose_explicit_ctor_should_be_used> & x, boost::optional<class_whose_explicit_ctor_should_be_used> & y)
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{
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bool hasX = x;
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bool hasY = y;
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if ( !hasX && !hasY )
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return;
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if( !hasX )
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x = boost::in_place('\0');
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else if ( !hasY )
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y = boost::in_place('\0');
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optional_swap_test::swap(*x,*y);
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if( !hasX )
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y = boost::none ;
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else if( !hasY )
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x = boost::none ;
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}
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} // End of namespace optional_swap_test.
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namespace boost {
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//
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// Compile time tweaking on whether or not swap should use the default constructor:
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//
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template <> struct optional_swap_should_use_default_constructor<
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optional_swap_test::class_whose_default_ctor_should_be_used> : mpl::true_ {} ;
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template <> struct optional_swap_should_use_default_constructor<
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optional_swap_test::class_whose_default_ctor_should_not_be_used> : mpl::false_ {} ;
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template <class T> struct optional_swap_should_use_default_constructor<
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optional_swap_test::template_whose_default_ctor_should_be_used<T> > : mpl::true_ {} ;
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//
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// Specialization of boost::swap:
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//
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template <>
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void swap(optional<optional_swap_test::class_whose_explicit_ctor_should_be_used> & x, optional<optional_swap_test::class_whose_explicit_ctor_should_be_used> & y)
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{
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optional_swap_test::swap(x, y);
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}
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} // namespace boost
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namespace std {
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//
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// Specializations of std::swap:
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//
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template <>
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void swap(optional_swap_test::class_whose_default_ctor_should_be_used & x, optional_swap_test::class_whose_default_ctor_should_be_used & y)
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{
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optional_swap_test::swap(x, y);
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}
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template <>
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void swap(optional_swap_test::class_whose_default_ctor_should_not_be_used & x, optional_swap_test::class_whose_default_ctor_should_not_be_used & y)
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{
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optional_swap_test::swap(x, y);
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}
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template <>
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void swap(optional_swap_test::class_without_default_ctor & x, optional_swap_test::class_without_default_ctor & y)
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{
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optional_swap_test::swap(x, y);
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}
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template <>
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void swap(optional_swap_test::class_whose_explicit_ctor_should_be_used & x, optional_swap_test::class_whose_explicit_ctor_should_be_used & y)
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{
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optional_swap_test::swap(x, y);
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}
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} // namespace std
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//
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// Tests whether the swap function works properly for optional<T>.
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// Assumes that T has one data member, of type char.
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// Returns true iff the test is passed.
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//
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template <class T>
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bool test_swap_function( T const* )
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{
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const boost::unit_test::counter_t counter_before_test = boost::minimal_test::errors_counter();
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try
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{
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optional<T> obj1;
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optional<T> obj2('a');
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// Self-swap should not have any effect.
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swap(obj1, obj1);
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swap(obj2, obj2);
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BOOST_CHECK(!obj1);
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BOOST_CHECK(!!obj2 && obj2->data == 'a');
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// Call non-member swap.
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swap(obj1, obj2);
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// Test if obj1 and obj2 are really swapped.
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BOOST_CHECK(!!obj1 && obj1->data == 'a');
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BOOST_CHECK(!obj2);
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// Call non-member swap one more time.
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swap(obj1, obj2);
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// Test if obj1 and obj2 are swapped back.
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BOOST_CHECK(!obj1);
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BOOST_CHECK(!!obj2 && obj2->data == 'a');
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}
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catch(const std::exception &)
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{
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// The swap function should not throw, for our test cases.
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return false ;
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}
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return boost::minimal_test::errors_counter() == counter_before_test ;
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}
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||||
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||||
//
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// Tests whether the optional<T>::swap member function works properly.
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// Assumes that T has one data member, of type char.
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// Returns true iff the test is passed.
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//
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template <class T>
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bool test_swap_member_function( T const* )
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{
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const boost::unit_test::counter_t counter_before_test = boost::minimal_test::errors_counter();
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try
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||||
{
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optional<T> obj1;
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optional<T> obj2('a');
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// Self-swap should not have any effect.
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obj1.swap(obj1);
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obj2.swap(obj2);
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BOOST_CHECK(!obj1);
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BOOST_CHECK(!!obj2 && obj2->data == 'a');
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// Call member swap.
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obj1.swap(obj2);
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// Test if obj1 and obj2 are really swapped.
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BOOST_CHECK(!!obj1 && obj1->data == 'a');
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BOOST_CHECK(!obj2);
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||||
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||||
// Call member swap one more time.
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obj1.swap(obj2);
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||||
// Test if obj1 and obj2 are swapped back.
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||||
BOOST_CHECK(!obj1);
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||||
BOOST_CHECK(!!obj2 && obj2->data == 'a');
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||||
}
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||||
catch(const std::exception &)
|
||||
{
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||||
// The optional<T>::swap member function should not throw, for our test cases.
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||||
return false ;
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||||
}
|
||||
return boost::minimal_test::errors_counter() == counter_before_test ;
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||||
}
|
||||
|
||||
|
||||
//
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||||
// Tests compile time tweaking of swap, by means of
|
||||
// optional_swap_should_use_default_constructor.
|
||||
//
|
||||
void test_swap_tweaking()
|
||||
{
|
||||
BOOST_CHECK( test_swap_function( ARG(optional_swap_test::class_without_default_ctor) ) );
|
||||
BOOST_CHECK( test_swap_function( ARG(optional_swap_test::class_whose_default_ctor_should_be_used) ) );
|
||||
BOOST_CHECK( test_swap_function( ARG(optional_swap_test::class_whose_default_ctor_should_not_be_used) ) );
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||||
BOOST_CHECK( test_swap_function( ARG(optional_swap_test::class_whose_explicit_ctor_should_be_used) ) );
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||||
BOOST_CHECK( test_swap_function( ARG(optional_swap_test::template_whose_default_ctor_should_be_used<char>) ) );
|
||||
BOOST_CHECK( test_swap_member_function( ARG(optional_swap_test::class_without_default_ctor) ) );
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||||
BOOST_CHECK( test_swap_member_function( ARG(optional_swap_test::class_whose_default_ctor_should_be_used) ) );
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||||
BOOST_CHECK( test_swap_member_function( ARG(optional_swap_test::class_whose_default_ctor_should_not_be_used) ) );
|
||||
BOOST_CHECK( test_swap_member_function( ARG(optional_swap_test::class_whose_explicit_ctor_should_be_used) ) );
|
||||
BOOST_CHECK( test_swap_member_function( ARG(optional_swap_test::template_whose_default_ctor_should_be_used<char>) ) );
|
||||
}
|
||||
|
||||
int test_main( int, char* [] )
|
||||
{
|
||||
try
|
||||
@@ -886,6 +1272,7 @@ int test_main( int, char* [] )
|
||||
test_no_implicit_conversions();
|
||||
test_conversions1();
|
||||
test_conversions2();
|
||||
test_swap_tweaking();
|
||||
}
|
||||
catch ( ... )
|
||||
{
|
||||
|
||||
@@ -299,6 +299,23 @@ void test_none( T const* )
|
||||
BOOST_CHECK ( !non_def ) ;
|
||||
}
|
||||
|
||||
template<class T>
|
||||
void test_arrow( T const* )
|
||||
{
|
||||
TRACE( std::endl << BOOST_CURRENT_FUNCTION );
|
||||
|
||||
T a(1234);
|
||||
|
||||
optional<T&> oa(a) ;
|
||||
optional<T&> const coa(a) ;
|
||||
|
||||
BOOST_CHECK ( coa->V() == 1234 ) ;
|
||||
|
||||
oa->V() = 4321 ;
|
||||
|
||||
BOOST_CHECK ( a.V() = 4321 ) ;
|
||||
}
|
||||
|
||||
void test_with_builtin_types()
|
||||
{
|
||||
TRACE( std::endl << BOOST_CURRENT_FUNCTION );
|
||||
@@ -315,16 +332,35 @@ void test_with_class_type()
|
||||
test_basics( ARG(X) );
|
||||
test_relops( ARG(X) ) ;
|
||||
test_none ( ARG(X) ) ;
|
||||
test_arrow ( ARG(X) ) ;
|
||||
|
||||
BOOST_CHECK ( X::count == 0 ) ;
|
||||
}
|
||||
|
||||
void test_binding()
|
||||
{
|
||||
int i = 0 ;
|
||||
optional<int&> ori1 = i ;
|
||||
BOOST_CHECK( &(*ori1) == &i ) ;
|
||||
|
||||
optional<int&> ori2(i) ;
|
||||
BOOST_CHECK( &(*ori2) == &i ) ;
|
||||
|
||||
int const ci = 0 ;
|
||||
optional<int const&> orci1 = ci ;
|
||||
BOOST_CHECK( &(*orci1) == &ci ) ;
|
||||
|
||||
optional<int const&> orci2(ci) ;
|
||||
BOOST_CHECK( &(*orci2) == &ci ) ;
|
||||
}
|
||||
|
||||
int test_main( int, char* [] )
|
||||
{
|
||||
try
|
||||
{
|
||||
test_with_class_type();
|
||||
test_with_builtin_types();
|
||||
test_binding();
|
||||
}
|
||||
catch ( ... )
|
||||
{
|
||||
|
||||
Reference in New Issue
Block a user