54d13b5b2d
Summary: Create self contained functional header which has a type similar to `std::function` Reviewers: sivachandra, PaulkaToast Reviewed By: sivachandra Subscribers: mgorny, tschuett, libc-commits Differential Revision: https://reviews.llvm.org/D77948
31 lines
929 B
C++
31 lines
929 B
C++
//===-- Self contained functional header ------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_UTILS_CPP_FUNCTIONAL_H
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#define LLVM_LIBC_UTILS_CPP_FUNCTIONAL_H
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namespace __llvm_libc {
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namespace cpp {
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template <typename Func> class function;
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template <typename Ret, typename... Params> class function<Ret(Params...)> {
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Ret (*func)(Params...) = nullptr;
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public:
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constexpr function() = default;
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template <typename Func> constexpr function(Func &&f) : func(f) {}
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constexpr Ret operator()(Params... params) { return func(params...); }
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};
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} // namespace cpp
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} // namespace __llvm_libc
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#endif // LLVM_LIBC_UTILS_CPP_FUNCTIONAL_H
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