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12 lines
388 B
C++
12 lines
388 B
C++
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template <bool>
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struct s1 { typedef int type; };
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template <typename T>
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struct s2 { constexpr operator bool() const noexcept { return true; } };
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template <class T, class = typename s1<s2<T>{}>::type>
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struct s3 {};
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// previously failed compiling with:
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// "test.cpp", line 6: error: expression must have a constant value
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// template <class T, class = typename s1<s2<T>{}>::type>
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