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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/g++.dg/cpp0x/decltype5.C | |
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Diffstat (limited to 'gcc/testsuite/g++.dg/cpp0x/decltype5.C')
-rw-r--r-- | gcc/testsuite/g++.dg/cpp0x/decltype5.C | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/cpp0x/decltype5.C b/gcc/testsuite/g++.dg/cpp0x/decltype5.C new file mode 100644 index 000000000..139153987 --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp0x/decltype5.C @@ -0,0 +1,38 @@ +// { dg-do compile } +// { dg-options "-std=gnu++0x" } + +template<typename T, typename U> +struct is_same +{ + static const bool value = false; +}; + +template<typename T> +struct is_same<T, T> +{ + static const bool value = true; +}; + +#define CHECK_DECLTYPE(DECLTYPE,RESULT) \ + static_assert(is_same< DECLTYPE , RESULT >::value, #RESULT) + +template<typename F> F create_a(); + +template<typename F, typename T1> +decltype(create_a<F&>()(create_a<const T1&>())) forward(F f, const T1& a1) +{ + return f(a1); +} + +struct identity { + template<typename T> + const T& operator()(const T& x) { return x; } +}; + + +identity id; +int i; +float f; + +CHECK_DECLTYPE(decltype(forward(id, i)), const int&); +CHECK_DECLTYPE(decltype(forward(id, f)), const float&); |