forked from TrueCloudLab/neoneo-go
43 lines
951 B
Go
43 lines
951 B
Go
package math
|
|
|
|
import "github.com/nspcc-dev/neo-go/pkg/interop/neogointernal"
|
|
|
|
// Pow returns a^b using POW VM opcode.
|
|
// b must be >= 0 and <= 2^31-1.
|
|
func Pow(a, b int) int {
|
|
return neogointernal.Opcode2("POW", a, b).(int)
|
|
}
|
|
|
|
// Sqrt returns positive square root of x rounded down.
|
|
func Sqrt(x int) int {
|
|
return neogointernal.Opcode1("SQRT", x).(int)
|
|
}
|
|
|
|
// Sign returns:
|
|
//
|
|
// -1 if x < 0
|
|
// 0 if x == 0
|
|
// +1 if x > 0
|
|
func Sign(a int) int {
|
|
return neogointernal.Opcode1("SIGN", a).(int)
|
|
}
|
|
|
|
// Abs returns absolute value of a.
|
|
func Abs(a int) int {
|
|
return neogointernal.Opcode1("ABS", a).(int)
|
|
}
|
|
|
|
// Max returns maximum of a, b.
|
|
func Max(a, b int) int {
|
|
return neogointernal.Opcode2("MAX", a, b).(int)
|
|
}
|
|
|
|
// Min returns minimum of a, b.
|
|
func Min(a, b int) int {
|
|
return neogointernal.Opcode2("MIN", a, b).(int)
|
|
}
|
|
|
|
// Within returns true if a <= x < b.
|
|
func Within(x, a, b int) bool {
|
|
return neogointernal.Opcode3("WITHIN", x, a, b).(bool)
|
|
}
|