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package internal
// Align returns 'n' updated to 'alignment' boundary.
func Align[I Integer](n, alignment I) I {
return (n + alignment - 1) / alignment * alignment
}
// IsPow returns true if n is a power of two.
func IsPow[I Integer](n I) bool {
return n != 0 && (n&(n-1)) == 0
}
// Between returns the value clamped between a and b.
func Between[I Integer](val, a, b I) I {
lower, upper := a, b
if lower > upper {
upper, lower = a, b
}
val = min(val, upper)
return max(val, lower)
}
// Integer represents all possible integer types.
// Remove when x/exp/constraints is moved to the standard library.
type Integer interface {
~int | ~int8 | ~int16 | ~int32 | ~int64 | ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr
}
// List of integer types known by the Go compiler. Used by TestIntegerConstraint
// to warn if a new integer type is introduced. Remove when x/exp/constraints
// is moved to the standard library.
var integers = []string{"int", "int8", "int16", "int32", "int64", "uint", "uint8", "uint16", "uint32", "uint64", "uintptr"}
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