50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package paging
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// Reverse will reverse the given input slice.
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func Reverse(in []string) []string {
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var (
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// Start at front.
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i = 0
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// Start at back.
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j = len(in) - 1
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)
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for i < j {
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// Swap i,j index values in slice.
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in[i], in[j] = in[j], in[i]
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// incr + decr,
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// looping until
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// they meet in
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// the middle.
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i++
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j--
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}
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return in
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}
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// zero is a shorthand to check a generic value is its zero value.
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func zero[T comparable](t T) bool {
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var z T
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return t == z
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}
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