Add some comments (#13)

filesys/fsops/fsops.go

@@ -149,7 +149,7 @@ func copyFolderContentInt(source string, dest string, levelsDeeper int, deleteso
 		sourcefilepointer := source + "/" + obj.Name()
 		destinationfilepointer := dest + "/" + obj.Name()
 		if obj.IsDir() {
-			if 0 > levelsDeeper { // recursively all.
+			if levelsDeeper < 0 { // recursively all.
 				err = copyFolderInt(sourcefilepointer, destinationfilepointer, levelsDeeper, deletesource)
 			} else if 1 <= levelsDeeper { // some levels only - continue.
 				err = copyFolderInt(sourcefilepointer, destinationfilepointer, levelsDeeper-1, deletesource)

testing/testvalue/sign.go

@@ -4,6 +4,7 @@ type NumberPosNeg interface {
 	int | int32 | int64 | float32 | float64
 }
 
+// Pos returns abs(n) of the number !=0 or 1 otherwise.
 func Pos[T NumberPosNeg](n T) T {
 	if n == 0 {
 		n = 1
@@ -13,18 +14,21 @@ func Pos[T NumberPosNeg](n T) T {
 	return n
 }
 
+// Neg returns -abs(n) of the number !=0 or -1 otherwise.
 func Neg[T NumberPosNeg](n T) T {
 	// nolint:typecheck
 	return -Pos(n)
 }
 
+// NonPos returns -abs(n) or zero.
 func NonPos[T NumberPosNeg](n T) T {
 	if n > 0 {
 		n *= -1
 	}
 	return n
 }
 
+// NonNeg returns abs(n) or zero.
 func NonNeg[T NumberPosNeg](n T) T {
 	return -NonPos(n)
 }