1 line
657 B
C++
1 line
657 B
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <functional>
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// template <CopyConstructible Arg, Returnable Result>
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// pointer_to_unary_function<Arg, Result>
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// ptr_fun(Result (*f)(Arg));
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#include <functional>
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#include <type_traits>
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#include <cassert>
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double unary_f(int i) {return 0.5 - i;}
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int main()
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{
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assert(std::ptr_fun(unary_f)(36) == -35.5);
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}
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