forked from boostorg/utility
532c8aa06d
- Deal with function references - Deal with cv-qualified member pointers libs/utility/result_of_test.cpp: - Test all of those things above [SVN r2157]
46 lines
1.8 KiB
C++
46 lines
1.8 KiB
C++
#include <boost/result_of.hpp>
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#include <utility>
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#include <boost/static_assert.hpp>
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#include <boost/type_traits/is_same.hpp>
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struct int_result_type { typedef int result_type; };
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struct int_result_of
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{
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template<typename F> struct result { typedef int type; };
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};
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struct int_result_type_and_float_result_of
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{
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typedef int result_type;
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template<typename F> struct result { typedef float type; };
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};
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struct X {};
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int main()
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{
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using namespace boost;
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typedef int (*func_ptr)(float, double);
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typedef int (&func_ref)(float, double);
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typedef int (X::*mem_func_ptr)(float);
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typedef int (X::*mem_func_ptr_c)(float) const;
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typedef int (X::*mem_func_ptr_v)(float) volatile;
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typedef int (X::*mem_func_ptr_cv)(float) const volatile;
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BOOST_STATIC_ASSERT((is_same<result_of<int_result_type(float)>::type, int>::value));
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BOOST_STATIC_ASSERT((is_same<result_of<int_result_of(double)>::type, int>::value));
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BOOST_STATIC_ASSERT((is_same<result_of<int_result_of(void)>::type, void>::value));
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BOOST_STATIC_ASSERT((is_same<result_of<const int_result_of(double)>::type, int>::value));
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BOOST_STATIC_ASSERT((is_same<result_of<volatile int_result_of(void)>::type, void>::value));
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BOOST_STATIC_ASSERT((is_same<result_of<int_result_type_and_float_result_of(char)>::type, int>::value));
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BOOST_STATIC_ASSERT((is_same<result_of<func_ptr(char, float)>::type, int>::value));
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BOOST_STATIC_ASSERT((is_same<result_of<func_ref(char, float)>::type, int>::value));
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BOOST_STATIC_ASSERT((is_same<result_of<mem_func_ptr(X,char)>::type, int>::value));
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BOOST_STATIC_ASSERT((is_same<result_of<mem_func_ptr_c(X,char)>::type, int>::value));
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BOOST_STATIC_ASSERT((is_same<result_of<mem_func_ptr_v(X,char)>::type, int>::value));
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BOOST_STATIC_ASSERT((is_same<result_of<mem_func_ptr_cv(X,char)>::type, int>::value));
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return 0;
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}
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