66d00feb18
Summary: Made all header files consistent based of this documentation: https://llvm.org/docs/CodingStandards.html#file-headers. And did the same for all source files top of file comments. Reviewers: sivachandra, abrachet Reviewed By: sivachandra, abrachet Subscribers: MaskRay, tschuett, libc-commits Tags: #libc-project Differential Revision: https://reviews.llvm.org/D77533
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
//===-- A self contained equivalent of std::array ---------------*- 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_ARRAY_H
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#define LLVM_LIBC_UTILS_CPP_ARRAY_H
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#include <stddef.h> // For size_t.
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namespace __llvm_libc {
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namespace cpp {
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template <class T, size_t N> struct Array {
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static_assert(N != 0, "Cannot create a __llvm_libc::cpp::Array of size 0.");
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T Data[N];
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using iterator = T *;
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using const_iterator = const T *;
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constexpr T *data() { return Data; }
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constexpr const T *data() const { return Data; }
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constexpr T &front() { return Data[0]; }
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constexpr T &front() const { return Data[0]; }
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constexpr T &back() { return Data[N - 1]; }
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constexpr T &back() const { return Data[N - 1]; }
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constexpr T &operator[](size_t Index) { return Data[Index]; }
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constexpr const T &operator[](size_t Index) const { return Data[Index]; }
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constexpr size_t size() const { return N; }
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constexpr bool empty() const { return N == 0; }
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constexpr iterator begin() { return Data; }
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constexpr const_iterator begin() const { return Data; }
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constexpr iterator end() { return Data + N; }
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const_iterator end() const { return Data + N; }
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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_ARRAY_H
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