Mercurial > gemma
view pkg/common/delta.go @ 5688:6281c18b109f sr-v2
Finsh serializing v2 meshes.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Mon, 12 Feb 2024 02:27:41 +0100 |
parents | |
children | 9e9cedae718a |
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// This is Free Software under GNU Affero General Public License v >= 3.0 // without warranty, see README.md and license for details. // // SPDX-License-Identifier: AGPL-3.0-or-later // License-Filename: LICENSES/AGPL-3.0.txt // // Copyright (C) 2024 by via donau // – Österreichische Wasserstraßen-Gesellschaft mbH // Software engineering by Intevation GmbH // // Author(s): // * Sascha L. Teichmann <sascha.teichmann@intevation.de> package common // Delta returns a function which returns its argument when called // the first time and the delta to the last call afterwards. func Delta() func(int64) int64 { var last int64 first := true return func(x int64) (y int64) { if first { first = false y = x last = x } else { y = x - last last = x } return } }