mirror of
https://github.com/duanhf2012/origin.git
synced 2026-02-13 23:24:45 +08:00
87 lines
2.1 KiB
Go
87 lines
2.1 KiB
Go
package smath
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import (
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"github.com/duanhf2012/origin/v2/log"
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"github.com/duanhf2012/origin/v2/util/typedef"
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)
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func Max[NumType typedef.Number](number1 NumType, number2 NumType) NumType {
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if number1 > number2 {
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return number1
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}
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return number2
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}
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func Min[NumType typedef.Number](number1 NumType, number2 NumType) NumType {
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if number1 < number2 {
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return number1
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}
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return number2
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}
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func Abs[NumType typedef.Signed|typedef.Float](Num NumType) NumType {
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if Num < 0 {
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return -1 * Num
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}
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return Num
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}
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func AddSafe[NumType typedef.Number](number1 NumType, number2 NumType) (NumType, bool) {
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ret := number1 + number2
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if number2 > 0 && ret < number1 {
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log.Stack("Calculation overflow", log.Any("number1", number1), log.Any("number2", number2))
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return ret, false
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} else if number2 < 0 && ret > number1 {
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log.Stack("Calculation overflow", log.Any("number1", number1), log.Any("number2", number2))
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return ret, false
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}
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return ret, true
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}
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func SubSafe[NumType typedef.Number](number1 NumType, number2 NumType) (NumType, bool) {
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ret := number1 - number2
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if number2 > 0 && ret > number1 {
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log.Stack("Calculation overflow", log.Any("number1", number1), log.Any("number2", number2))
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return ret, false
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} else if number2 < 0 && ret < number1 {
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log.Stack("Calculation overflow", log.Any("number1", number1), log.Any("number2", number2))
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return ret, false
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}
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return ret, true
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}
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func MulSafe[NumType typedef.Number](number1 NumType, number2 NumType) (NumType, bool) {
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ret := number1 * number2
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if number1 == 0 || number2 == 0 {
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return ret, true
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}
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if ret/number2 == number1 {
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return ret, true
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}
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log.Stack("Calculation overflow", log.Any("number1", number1), log.Any("number2", number2))
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return ret, true
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}
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func Add[NumType typedef.Number](number1 NumType, number2 NumType) NumType {
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ret, _ := AddSafe(number1, number2)
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return ret
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}
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func Sub[NumType typedef.Number](number1 NumType, number2 NumType) NumType {
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ret, _ := SubSafe(number1, number2)
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return ret
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}
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func Mul[NumType typedef.Number](number1 NumType, number2 NumType) NumType {
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ret, _ := MulSafe(number1, number2)
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return ret
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}
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