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11d50ecb9f
On Linux, GNU's libstdc++, which is the default stdlib for icc and clang, cannot parse the <iomanip> header in version 4.5+ (which thankfully neither compiler advises the use of yet), as it's original C++98-friendly implementation has been replaced with a gnu++0x implementation. <boost/detail/iomanip.hpp> is a portable implementation of <iomanip>, providing boost::detail::setfill, boost::detail::setbase, boost::detail::setw, boost::detail::setprecision, boost::detail::setiosflags and boost::detail::resetiosflags. [SVN r68140]
413 lines
14 KiB
C++
413 lines
14 KiB
C++
// boost::compressed_pair test program
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// (C) Copyright John Maddock 2000.
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// Use, modification and distribution are subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt).
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// standalone test program for <boost/call_traits.hpp>
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// 18 Mar 2002:
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// Changed some names to prevent conflicts with some new type_traits additions.
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// 03 Oct 2000:
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// Enabled extra tests for VC6.
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#include <iostream>
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#include <boost/detail/iomanip.hpp>
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#include <algorithm>
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#include <typeinfo>
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#include <boost/call_traits.hpp>
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#include <libs/type_traits/test/test.hpp>
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#include <libs/type_traits/test/check_type.hpp>
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#ifdef BOOST_MSVC
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#pragma warning(disable:4181) // : warning C4181: qualifier applied to reference type; ignored
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#endif
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// a way prevent warnings for unused variables
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template<class T> inline void unused_variable(const T&) {}
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//
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// struct contained models a type that contains a type (for example std::pair)
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// arrays are contained by value, and have to be treated as a special case:
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//
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template <class T>
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struct contained
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{
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// define our typedefs first, arrays are stored by value
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// so value_type is not the same as result_type:
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typedef typename boost::call_traits<T>::param_type param_type;
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typedef typename boost::call_traits<T>::reference reference;
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typedef typename boost::call_traits<T>::const_reference const_reference;
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typedef T value_type;
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typedef typename boost::call_traits<T>::value_type result_type;
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// stored value:
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value_type v_;
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// constructors:
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contained() {}
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contained(param_type p) : v_(p){}
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// return byval:
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result_type value()const { return v_; }
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// return by_ref:
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reference get() { return v_; }
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const_reference const_get()const { return v_; }
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// pass value:
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void call(param_type){}
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private:
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contained& operator=(const contained&);
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};
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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template <class T, std::size_t N>
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struct contained<T[N]>
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{
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typedef typename boost::call_traits<T[N]>::param_type param_type;
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typedef typename boost::call_traits<T[N]>::reference reference;
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typedef typename boost::call_traits<T[N]>::const_reference const_reference;
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typedef T value_type[N];
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typedef typename boost::call_traits<T[N]>::value_type result_type;
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value_type v_;
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contained(param_type p)
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{
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std::copy(p, p+N, v_);
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}
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// return byval:
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result_type value()const { return v_; }
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// return by_ref:
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reference get() { return v_; }
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const_reference const_get()const { return v_; }
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void call(param_type){}
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private:
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contained& operator=(const contained&);
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};
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#endif
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template <class T>
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contained<typename boost::call_traits<T>::value_type> test_wrap_type(const T& t)
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{
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typedef typename boost::call_traits<T>::value_type ct;
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return contained<ct>(t);
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}
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namespace test{
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template <class T1, class T2>
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std::pair<
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typename boost::call_traits<T1>::value_type,
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typename boost::call_traits<T2>::value_type>
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make_pair(const T1& t1, const T2& t2)
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{
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return std::pair<
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typename boost::call_traits<T1>::value_type,
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typename boost::call_traits<T2>::value_type>(t1, t2);
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}
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} // namespace test
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using namespace std;
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//
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// struct call_traits_checker:
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// verifies behaviour of contained example:
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//
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template <class T>
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struct call_traits_checker
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{
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typedef typename boost::call_traits<T>::param_type param_type;
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void operator()(param_type);
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};
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template <class T>
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void call_traits_checker<T>::operator()(param_type p)
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{
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T t(p);
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contained<T> c(t);
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cout << "checking contained<" << typeid(T).name() << ">..." << endl;
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BOOST_CHECK(t == c.value());
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BOOST_CHECK(t == c.get());
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BOOST_CHECK(t == c.const_get());
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#ifndef __ICL
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//cout << "typeof contained<" << typeid(T).name() << ">::v_ is: " << typeid(&contained<T>::v_).name() << endl;
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cout << "typeof contained<" << typeid(T).name() << ">::value() is: " << typeid(&contained<T>::value).name() << endl;
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cout << "typeof contained<" << typeid(T).name() << ">::get() is: " << typeid(&contained<T>::get).name() << endl;
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cout << "typeof contained<" << typeid(T).name() << ">::const_get() is: " << typeid(&contained<T>::const_get).name() << endl;
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cout << "typeof contained<" << typeid(T).name() << ">::call() is: " << typeid(&contained<T>::call).name() << endl;
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cout << endl;
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#endif
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}
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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template <class T, std::size_t N>
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struct call_traits_checker<T[N]>
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{
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typedef typename boost::call_traits<T[N]>::param_type param_type;
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void operator()(param_type t)
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{
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contained<T[N]> c(t);
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cout << "checking contained<" << typeid(T[N]).name() << ">..." << endl;
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unsigned int i = 0;
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for(i = 0; i < N; ++i)
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BOOST_CHECK(t[i] == c.value()[i]);
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for(i = 0; i < N; ++i)
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BOOST_CHECK(t[i] == c.get()[i]);
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for(i = 0; i < N; ++i)
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BOOST_CHECK(t[i] == c.const_get()[i]);
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cout << "typeof contained<" << typeid(T[N]).name() << ">::v_ is: " << typeid(&contained<T[N]>::v_).name() << endl;
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cout << "typeof contained<" << typeid(T[N]).name() << ">::value is: " << typeid(&contained<T[N]>::value).name() << endl;
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cout << "typeof contained<" << typeid(T[N]).name() << ">::get is: " << typeid(&contained<T[N]>::get).name() << endl;
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cout << "typeof contained<" << typeid(T[N]).name() << ">::const_get is: " << typeid(&contained<T[N]>::const_get).name() << endl;
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cout << "typeof contained<" << typeid(T[N]).name() << ">::call is: " << typeid(&contained<T[N]>::call).name() << endl;
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cout << endl;
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}
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};
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#endif
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//
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// check_wrap:
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template <class W, class U>
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void check_wrap(const W& w, const U& u)
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{
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cout << "checking " << typeid(W).name() << "..." << endl;
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BOOST_CHECK(w.value() == u);
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}
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//
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// check_make_pair:
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// verifies behaviour of "make_pair":
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//
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template <class T, class U, class V>
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void check_make_pair(T c, U u, V v)
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{
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cout << "checking std::pair<" << typeid(c.first).name() << ", " << typeid(c.second).name() << ">..." << endl;
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BOOST_CHECK(c.first == u);
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BOOST_CHECK(c.second == v);
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cout << endl;
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}
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struct comparible_UDT
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{
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int i_;
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comparible_UDT() : i_(2){}
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comparible_UDT(const comparible_UDT& other) : i_(other.i_){}
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comparible_UDT& operator=(const comparible_UDT& other)
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{
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i_ = other.i_;
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return *this;
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}
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bool operator == (const comparible_UDT& v){ return v.i_ == i_; }
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};
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int main()
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{
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call_traits_checker<comparible_UDT> c1;
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comparible_UDT u;
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c1(u);
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call_traits_checker<int> c2;
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int i = 2;
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c2(i);
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int* pi = &i;
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int a[2] = {1,2};
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#if defined(BOOST_MSVC6_MEMBER_TEMPLATES) && !defined(__ICL)
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call_traits_checker<int*> c3;
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c3(pi);
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call_traits_checker<int&> c4;
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c4(i);
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call_traits_checker<const int&> c5;
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c5(i);
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#if !defined (BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(__MWERKS__) && !defined(__SUNPRO_CC)
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call_traits_checker<int[2]> c6;
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c6(a);
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#endif
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#endif
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check_wrap(test_wrap_type(2), 2);
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#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(__SUNPRO_CC)
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check_wrap(test_wrap_type(a), a);
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check_make_pair(test::make_pair(a, a), a, a);
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#endif
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// cv-qualifiers applied to reference types should have no effect
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// declare these here for later use with is_reference and remove_reference:
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typedef int& r_type;
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typedef const r_type cr_type;
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BOOST_CHECK_TYPE(comparible_UDT, boost::call_traits<comparible_UDT>::value_type);
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BOOST_CHECK_TYPE(comparible_UDT&, boost::call_traits<comparible_UDT>::reference);
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BOOST_CHECK_TYPE(const comparible_UDT&, boost::call_traits<comparible_UDT>::const_reference);
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BOOST_CHECK_TYPE(const comparible_UDT&, boost::call_traits<comparible_UDT>::param_type);
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BOOST_CHECK_TYPE(int, boost::call_traits<int>::value_type);
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BOOST_CHECK_TYPE(int&, boost::call_traits<int>::reference);
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BOOST_CHECK_TYPE(const int&, boost::call_traits<int>::const_reference);
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BOOST_CHECK_TYPE(const int, boost::call_traits<int>::param_type);
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BOOST_CHECK_TYPE(int*, boost::call_traits<int*>::value_type);
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BOOST_CHECK_TYPE(int*&, boost::call_traits<int*>::reference);
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BOOST_CHECK_TYPE(int*const&, boost::call_traits<int*>::const_reference);
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BOOST_CHECK_TYPE(int*const, boost::call_traits<int*>::param_type);
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#if defined(BOOST_MSVC6_MEMBER_TEMPLATES)
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BOOST_CHECK_TYPE(int&, boost::call_traits<int&>::value_type);
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BOOST_CHECK_TYPE(int&, boost::call_traits<int&>::reference);
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BOOST_CHECK_TYPE(const int&, boost::call_traits<int&>::const_reference);
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BOOST_CHECK_TYPE(int&, boost::call_traits<int&>::param_type);
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#if !(defined(__GNUC__) && ((__GNUC__ < 3) || (__GNUC__ == 3) && (__GNUC_MINOR__ < 1)))
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BOOST_CHECK_TYPE(int&, boost::call_traits<cr_type>::value_type);
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BOOST_CHECK_TYPE(int&, boost::call_traits<cr_type>::reference);
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BOOST_CHECK_TYPE(const int&, boost::call_traits<cr_type>::const_reference);
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BOOST_CHECK_TYPE(int&, boost::call_traits<cr_type>::param_type);
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#else
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std::cout << "Your compiler cannot instantiate call_traits<int&const>, skipping four tests (4 errors)" << std::endl;
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#endif
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BOOST_CHECK_TYPE(const int&, boost::call_traits<const int&>::value_type);
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BOOST_CHECK_TYPE(const int&, boost::call_traits<const int&>::reference);
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BOOST_CHECK_TYPE(const int&, boost::call_traits<const int&>::const_reference);
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BOOST_CHECK_TYPE(const int&, boost::call_traits<const int&>::param_type);
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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BOOST_CHECK_TYPE(const int*, boost::call_traits<int[3]>::value_type);
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BOOST_CHECK_TYPE(int(&)[3], boost::call_traits<int[3]>::reference);
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BOOST_CHECK_TYPE(const int(&)[3], boost::call_traits<int[3]>::const_reference);
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BOOST_CHECK_TYPE(const int*const, boost::call_traits<int[3]>::param_type);
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BOOST_CHECK_TYPE(const int*, boost::call_traits<const int[3]>::value_type);
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BOOST_CHECK_TYPE(const int(&)[3], boost::call_traits<const int[3]>::reference);
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BOOST_CHECK_TYPE(const int(&)[3], boost::call_traits<const int[3]>::const_reference);
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BOOST_CHECK_TYPE(const int*const, boost::call_traits<const int[3]>::param_type);
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// test with abstract base class:
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BOOST_CHECK_TYPE(test_abc1, boost::call_traits<test_abc1>::value_type);
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BOOST_CHECK_TYPE(test_abc1&, boost::call_traits<test_abc1>::reference);
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BOOST_CHECK_TYPE(const test_abc1&, boost::call_traits<test_abc1>::const_reference);
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BOOST_CHECK_TYPE(const test_abc1&, boost::call_traits<test_abc1>::param_type);
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#else
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std::cout << "You're compiler does not support partial template specialiation, skipping 8 tests (8 errors)" << std::endl;
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#endif
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#else
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std::cout << "You're compiler does not support partial template specialiation, skipping 20 tests (20 errors)" << std::endl;
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#endif
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// test with an incomplete type:
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BOOST_CHECK_TYPE(incomplete_type, boost::call_traits<incomplete_type>::value_type);
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BOOST_CHECK_TYPE(incomplete_type&, boost::call_traits<incomplete_type>::reference);
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BOOST_CHECK_TYPE(const incomplete_type&, boost::call_traits<incomplete_type>::const_reference);
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BOOST_CHECK_TYPE(const incomplete_type&, boost::call_traits<incomplete_type>::param_type);
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return 0;
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}
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//
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// define call_traits tests to check that the assertions in the docs do actually work
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// this is an compile-time only set of tests:
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//
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template <typename T, bool isarray = false>
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struct call_traits_test
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{
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typedef ::boost::call_traits<T> ct;
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typedef typename ct::param_type param_type;
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typedef typename ct::reference reference;
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typedef typename ct::const_reference const_reference;
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typedef typename ct::value_type value_type;
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static void assert_construct(param_type val);
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};
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template <typename T, bool isarray>
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void call_traits_test<T, isarray>::assert_construct(typename call_traits_test<T, isarray>::param_type val)
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{
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//
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// this is to check that the call_traits assertions are valid:
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T t(val);
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value_type v(t);
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reference r(t);
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const_reference cr(t);
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param_type p(t);
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value_type v2(v);
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value_type v3(r);
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value_type v4(p);
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reference r2(v);
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reference r3(r);
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const_reference cr2(v);
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const_reference cr3(r);
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const_reference cr4(cr);
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const_reference cr5(p);
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param_type p2(v);
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param_type p3(r);
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param_type p4(p);
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unused_variable(v2);
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unused_variable(v3);
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unused_variable(v4);
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unused_variable(r2);
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unused_variable(r3);
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unused_variable(cr2);
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unused_variable(cr3);
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unused_variable(cr4);
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unused_variable(cr5);
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unused_variable(p2);
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unused_variable(p3);
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unused_variable(p4);
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}
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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template <typename T>
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struct call_traits_test<T, true>
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{
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typedef ::boost::call_traits<T> ct;
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typedef typename ct::param_type param_type;
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typedef typename ct::reference reference;
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typedef typename ct::const_reference const_reference;
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typedef typename ct::value_type value_type;
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static void assert_construct(param_type val);
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};
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template <typename T>
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void call_traits_test<T, true>::assert_construct(typename boost::call_traits<T>::param_type val)
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{
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//
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// this is to check that the call_traits assertions are valid:
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T t;
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value_type v(t);
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value_type v5(val);
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reference r = t;
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const_reference cr = t;
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reference r2 = r;
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#ifndef __BORLANDC__
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// C++ Builder buglet:
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const_reference cr2 = r;
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#endif
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param_type p(t);
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value_type v2(v);
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const_reference cr3 = cr;
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value_type v3(r);
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value_type v4(p);
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param_type p2(v);
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param_type p3(r);
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param_type p4(p);
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unused_variable(v2);
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unused_variable(v3);
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unused_variable(v4);
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unused_variable(v5);
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#ifndef __BORLANDC__
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unused_variable(r2);
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unused_variable(cr2);
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#endif
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unused_variable(cr3);
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unused_variable(p2);
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unused_variable(p3);
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unused_variable(p4);
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}
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#endif //BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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//
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// now check call_traits assertions by instantiating call_traits_test:
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template struct call_traits_test<int>;
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template struct call_traits_test<const int>;
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template struct call_traits_test<int*>;
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#if defined(BOOST_MSVC6_MEMBER_TEMPLATES)
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template struct call_traits_test<int&>;
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template struct call_traits_test<const int&>;
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#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(__SUNPRO_CC)
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template struct call_traits_test<int[2], true>;
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#endif
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#endif
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