mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-29 23:22:45 +00:00
865b3aeaac
* include pinned status when incrementing / decrementing status counts * remove the pinned increment on status creation * code comments * microoptimize decr
44 lines
1.3 KiB
Go
44 lines
1.3 KiB
Go
// GoToSocial
|
|
// Copyright (C) GoToSocial Authors admin@gotosocial.org
|
|
// SPDX-License-Identifier: AGPL-3.0-or-later
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package util
|
|
|
|
type Number interface {
|
|
~int | ~int8 | ~int16 | ~int32 | ~int64 |
|
|
~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 |
|
|
~uintptr | ~float32 | ~float64
|
|
}
|
|
|
|
// Decr performs a safe decrement of
|
|
// n, clamping minimum value at zero.
|
|
func Decr[N Number](n N) N {
|
|
if n <= 0 {
|
|
return 0
|
|
}
|
|
return n - 1
|
|
}
|
|
|
|
// Div performs a safe division of
|
|
// n1 and n2, checking for zero n2. In the
|
|
// case of zero n2, zero is returned.
|
|
func Div[N Number](n1, n2 N) N {
|
|
if n2 == 0 {
|
|
return 0
|
|
}
|
|
return n1 / n2
|
|
}
|