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// common_type_test.cpp ----------------------------------------------------//
// Copyright 2010 Beman Dawes
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
#define BOOST_COMMON_TYPE_DONT_USE_TYPEOF 1
#include "test.hpp"
#include "check_type.hpp"
#ifdef TEST_STD
# include <type_traits>
#else
# include <boost/type_traits/common_type.hpp>
#endif
#include <iostream>
#ifdef BOOST_INTEL
#pragma warning(disable: 304 383)
#endif
struct C1 {};
struct C2 {};
struct C3 : C2 {};
struct C1C2 {
C1C2() {}
C1C2(C1 const&) {}
C1C2(C2 const&) {}
C1C2& operator=(C1C2 const&) {
return *this;
}
};
template <typename C, typename A>
void proc2(typename boost::common_type<A, C>::type const& ) {}
template <typename C, typename A, typename B>
void proc3(typename boost::common_type<C, A, B>::type const& ) {}
template <typename C, typename A>
void assignation_2() {
typedef typename boost::common_type<A, C>::type AC;
A a;
C c;
AC ac;
ac=a;
ac=c;
proc2<C, A>(a);
proc2<C, A>(c);
}
template <typename C, typename A, typename B>
void assignation_3() {
typedef typename boost::common_type<C, A, B>::type ABC;
A a;
B b;
C c;
ABC abc;
abc=a;
abc=b;
abc=c;
proc3<C, A, B>(a);
proc3<C, A, B>(b);
proc3<C, A, B>(c);
}
C1C2 c1c2;
C1 c1;
int f(C1C2 ) { return 1;}
int f(C1 ) { return 2;}
template <typename OSTREAM>
OSTREAM& operator<<(OSTREAM& os, C1 const&) {return os;}
C1C2& declval_C1C2() {return c1c2;}
C1& declval_C1(){return c1;}
bool declval_bool(){return true;}
TT_TEST_BEGIN(common_type)
{
#ifndef __SUNPRO_CC
assignation_2<C1C2, C1>();
typedef tt::common_type<C1C2&, C1&>::type T1;
BOOST_CHECK_TYPE(T1, C1C2);
typedef tt::common_type<C3*, C2*>::type T2;
BOOST_CHECK_TYPE(T2, C2*);
typedef tt::common_type<int*, int const*>::type T3;
BOOST_CHECK_TYPE(T3, int const*);
#if defined(BOOST_NO_CXX11_DECLTYPE) && !defined(BOOST_COMMON_TYPE_DONT_USE_TYPEOF)
// fails if BOOST_COMMON_TYPE_DONT_USE_TYPEOF:
typedef tt::common_type<int volatile*, int const*>::type T4;
BOOST_CHECK_TYPE(T4, int const volatile*);
#endif
typedef tt::common_type<int*, int volatile*>::type T5;
BOOST_CHECK_TYPE(T5, int volatile*);
assignation_2<C1, C1C2>();
assignation_2<C1C2, C2>();
assignation_2<C2, C1C2>();
assignation_3<C1, C1C2, C2>();
assignation_3<C1C2, C1, C2>();
assignation_3<C2, C1C2, C1>();
assignation_3<C1C2, C2, C1>();
//assignation_3<C1, C2, C1C2>(); // fails because the common type is the third
#endif
typedef tt::common_type<C1C2, C1>::type t1;
BOOST_CHECK_TYPE(t1, C1C2);
BOOST_CHECK_TYPE(tt::common_type<int>::type, int);
BOOST_CHECK_TYPE(tt::common_type<char>::type, char);
BOOST_CHECK_TYPE3(tt::common_type<char, char>::type, char);
BOOST_CHECK_TYPE3(tt::common_type<char, unsigned char>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<char, short>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<char, unsigned short>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<char, int>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<char, unsigned int>::type, unsigned int);
#ifndef BOOST_NO_LONG_LONG
BOOST_CHECK_TYPE3(tt::common_type<char, boost::long_long_type>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<char, boost::ulong_long_type>::type, boost::ulong_long_type);
#endif
BOOST_CHECK_TYPE3(tt::common_type<char, double>::type, double);
BOOST_CHECK_TYPE3(tt::common_type<unsigned char, char>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned char, unsigned char>::type, unsigned char);
BOOST_CHECK_TYPE3(tt::common_type<unsigned char, short>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned char, unsigned short>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned char, int>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned char, unsigned int>::type, unsigned int);
#ifndef BOOST_NO_LONG_LONG
BOOST_CHECK_TYPE3(tt::common_type<unsigned char, boost::long_long_type>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<unsigned char, boost::ulong_long_type>::type, boost::ulong_long_type);
#endif
BOOST_CHECK_TYPE3(tt::common_type<unsigned char, double>::type, double);
BOOST_CHECK_TYPE3(tt::common_type<short, char>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<short, unsigned char>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<short, short>::type, short);
BOOST_CHECK_TYPE3(tt::common_type<short, unsigned short>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<short, int>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<short, unsigned int>::type, unsigned int);
#ifndef BOOST_NO_LONG_LONG
BOOST_CHECK_TYPE3(tt::common_type<short, boost::long_long_type>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<short, boost::ulong_long_type>::type, boost::ulong_long_type);
#endif
BOOST_CHECK_TYPE3(tt::common_type<short, double>::type, double);
BOOST_CHECK_TYPE3(tt::common_type<unsigned short, char>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned short, unsigned char>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned short, short>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned short, unsigned short>::type, unsigned short);
BOOST_CHECK_TYPE3(tt::common_type<unsigned short, int>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned short, unsigned int>::type, unsigned int);
#ifndef BOOST_NO_LONG_LONG
BOOST_CHECK_TYPE3(tt::common_type<unsigned short, boost::long_long_type>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<unsigned short, boost::ulong_long_type>::type, boost::ulong_long_type);
#endif
BOOST_CHECK_TYPE3(tt::common_type<unsigned short, double>::type, double);
BOOST_CHECK_TYPE3(tt::common_type<int, char>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<int, unsigned char>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<int, short>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<int, unsigned short>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<int, int>::type, int);
BOOST_CHECK_TYPE3(tt::common_type<int, unsigned int>::type, unsigned int);
#ifndef BOOST_NO_LONG_LONG
BOOST_CHECK_TYPE3(tt::common_type<int, boost::long_long_type>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<int, boost::ulong_long_type>::type, boost::ulong_long_type);
#endif
BOOST_CHECK_TYPE3(tt::common_type<int, double>::type, double);
BOOST_CHECK_TYPE3(tt::common_type<unsigned int, char>::type, unsigned int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned int, unsigned char>::type, unsigned int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned int, short>::type, unsigned int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned int, unsigned short>::type, unsigned int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned int, int>::type, unsigned int);
BOOST_CHECK_TYPE3(tt::common_type<unsigned int, unsigned int>::type, unsigned int);
#ifndef BOOST_NO_LONG_LONG
BOOST_CHECK_TYPE3(tt::common_type<unsigned int, boost::long_long_type>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<unsigned int, boost::ulong_long_type>::type, boost::ulong_long_type);
#endif
BOOST_CHECK_TYPE3(tt::common_type<unsigned int, double>::type, double);
#ifndef BOOST_NO_LONG_LONG
BOOST_CHECK_TYPE3(tt::common_type<boost::long_long_type, char>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<boost::long_long_type, unsigned char>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<boost::long_long_type, short>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<boost::long_long_type, unsigned short>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<boost::long_long_type, int>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<boost::long_long_type, unsigned int>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<boost::long_long_type, boost::long_long_type>::type, boost::long_long_type);
BOOST_CHECK_TYPE3(tt::common_type<boost::long_long_type, boost::ulong_long_type>::type, boost::ulong_long_type);
BOOST_CHECK_TYPE3(tt::common_type<boost::long_long_type, double>::type, double);
#endif
BOOST_CHECK_TYPE3(tt::common_type<double, char>::type, double);
BOOST_CHECK_TYPE3(tt::common_type<double, unsigned char>::type, double);
BOOST_CHECK_TYPE3(tt::common_type<double, short>::type, double);
BOOST_CHECK_TYPE3(tt::common_type<double, unsigned short>::type, double);
BOOST_CHECK_TYPE3(tt::common_type<double, int>::type, double);
BOOST_CHECK_TYPE3(tt::common_type<double, unsigned int>::type, double);
#ifndef BOOST_NO_LONG_LONG
BOOST_CHECK_TYPE3(tt::common_type<double, boost::long_long_type>::type, double);
BOOST_CHECK_TYPE3(tt::common_type<double, boost::ulong_long_type>::type, double);
#endif
BOOST_CHECK_TYPE3(tt::common_type<double, double>::type, double);
BOOST_CHECK_TYPE4(tt::common_type<double, char, int>::type, double);
#ifndef BOOST_NO_LONG_LONG
BOOST_CHECK_TYPE4(tt::common_type<unsigned, char, boost::long_long_type>::type, boost::long_long_type);
#endif
}
TT_TEST_END
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