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/*
Copyright 2020...2021 Adam Lavrik <lavrik.adam@gmail.com>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on
an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
either express or implied. See the License for the specific
language governing permissions and limitations under the License.
*/
package ux
import "unsafe"
type T = uint
type ST = int
const (
Size = unsafe.Sizeof(T(0))
BitSize = Size << 3
Minimal = T(0)
Maximal = ^Minimal
)
func DivMod(dividend, divisor T) (T, T) {
return dividend / divisor, dividend % divisor
}
func GCD(value_0, value_1 T) T {
for value_1 != 0 {
value_0, value_1 = value_1, value_0 % value_1
}
return value_0
}
func Is2Power(value T) bool {
return value != 0 && (value & (value - 1) == 0)
}
func IsOdd(value T) bool {
return (value & 1) != 0
}
func LCM(value_0, value_1 T) T {
if value_0 == 0 || value_1 == 0 {
return 0
}
return value_0 / GCD(value_0, value_1) * value_1
}
func Min(value_0, value_1 T) T {
if value_0 < value_1 {
return value_0
}
return value_1
}
func Mins(value T, values ...T) T {
for _, v := range values {
if v < value {
value = v
}
}
return value
}
func MinSlice(values []T) T {
return Mins(values[0], values[1:]...)
}
func MinSliceChecked(values []T) (T, bool) {
if len(values) == 0 {
return 0, true
}
return MinSlice(values), false
}
func Max(value_0, value_1 T) T {
if value_0 > value_1 {
return value_0
}
return value_1
}
func Maxs(value T, values ...T) T {
for _, v := range values {
if v > value {
value = v
}
}
return value
}
func MaxSlice(values []T) T {
return Maxs(values[0], values[1:]...)
}
func MaxSliceChecked(values []T) (T, bool) {
if len(values) == 0 {
return 0, true
}
return MaxSlice(values), false
}
func MinMax(value_0, value_1 T) (T, T) {
if value_0 < value_1 {
return value_0, value_1
}
return value_1, value_0
}
func MinMaxs(value T, values ...T) (T, T) {
min := value
max := value
for _, v := range values {
if v < min {
min = v
} else if v > max {
max = v
}
}
return min, max
}
func MinMaxSlice(values []T) (T, T) {
return MinMaxs(values[0], values[1:]...)
}
func MinMaxSliceChecked(values []T) (T, T, bool) {
if len(values) == 0 {
return 0, 0, true
}
min, max := MinMaxSlice(values)
return min, max, false
}
func Sign(value T) T {
shift := BitSize - 1
return value >> shift | T((-ST(value &^ (1 << shift)) >> shift) & 1)
}
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