51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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namespace android {
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namespace hardware {
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namespace camera {
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namespace provider {
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namespace implementation {
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template <class T> struct Span {
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Span() : begin_(nullptr), end_(nullptr) {}
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template <size_t N> Span(T (&a)[N]) : begin_(&a[0]), end_(&a[N]) {}
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template <class I> Span(I begin, I end) : begin_(&*begin), end_(&*end) {}
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template <class I> Span(I begin, size_t size) : begin_(&*begin), end_(&begin[size]) {}
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T* data() { return begin_; }
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const T* data() const { return begin_; }
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T* begin() { return begin_; }
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T* end() { return end_; }
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const T* begin() const { return begin_; }
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const T* end() const { return end_; }
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size_t size() const { return end_ - begin_; }
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T& operator[](size_t i) { return begin_[i]; }
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const T& operator[](size_t i) const { return begin_[i]; }
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private:
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T* begin_;
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T* end_;
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};
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} // namespace implementation
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} // namespace provider
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} // namespace camera
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} // namespace hardware
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} // namespace android
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