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https://github.com/wpilibsuite/allwpilib
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28 lines
800 B
C
28 lines
800 B
C
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// Copyright (c) FIRST and other WPILib contributors.
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// Open Source Software; you can modify and/or share it under the terms of
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// the WPILib BSD license file in the root directory of this project.
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#pragma once
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#include <cassert>
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#include "wpi/span.h"
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namespace wpi {
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/// Drop the first \p N elements of the array.
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template <typename T>
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constexpr span<T> drop_front(span<T> in, typename span<T>::size_type n = 1) {
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assert(in.size() >= n && "Dropping more elements than exist");
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return in.subspan(n, in.size() - n);
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}
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/// Drop the last \p N elements of the array.
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template <typename T>
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constexpr span<T> drop_back(span<T> in, typename span<T>::size_type n = 1) {
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assert(in.size() >= n && "Dropping more elements than exist");
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return in.subspan(0, in.size() - n);
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}
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} // namespace wpi
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