49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
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namespace detail {
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template <typename T> struct Quux {};
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} // namespace detail
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using FuncPtr = detail::Quux<double> (*(*)(int))(float);
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struct Foo {
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template <typename T> void foo(T arg) const noexcept(true) {}
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template <int T> void operator<<(int) {}
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template <typename T> FuncPtr returns_func_ptr(detail::Quux<int> &&) const noexcept(false) { return nullptr; }
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};
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namespace ns {
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template <typename T> int foo(char const *str) noexcept(false) { return 0; }
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template <typename T> int foo(T t) { return 1; }
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template <typename T> FuncPtr returns_func_ptr(detail::Quux<int> &&) { return nullptr; }
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} // namespace ns
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int bar() { return 1; }
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namespace {
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int anon_bar() { return 1; }
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auto anon_lambda = [] {};
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} // namespace
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__attribute__((always_inline)) int inlined_foo(const char *str) {
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if (bool b = bar())
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return 1;
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return 2;
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}
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int main() {
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ns::foo<decltype(bar)>(bar);
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ns::foo<decltype(bar)>("bar");
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ns::foo(anon_lambda);
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ns::foo(anon_bar);
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ns::foo<decltype(&Foo::foo<int(int)>)>("method");
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ns::returns_func_ptr<int>(detail::Quux<int>{});
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Foo f;
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f.foo(anon_bar);
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f.operator<< <(2 > 1)>(0);
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f.returns_func_ptr<int>(detail::Quux<int>{});
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inlined_foo("bar");
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return 0;
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}
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