feat: add UnwarpOr and UnwarpOrDefault to pointer pkg (#116)

pointer/pointer_examples_test.go

@@ -29,6 +29,54 @@ func ExampleUnwrap() {
 	// abc
 }
 
+func ExampleUnwarpOr() {
+	a := 123
+	b := "abc"
+
+	var c *int
+	var d *string
+
+	result1 := UnwarpOr(&a, 456)
+	result2 := UnwarpOr(&b, "abc")
+	result3 := UnwarpOr(c, 456)
+	result4 := UnwarpOr(d, "def")
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+	fmt.Println(result4)
+
+	// Output:
+	// 123
+	// abc
+	// 456
+	// def
+}
+
+func ExampleUnwarpOrDefault() {
+	a := 123
+	b := "abc"
+
+	var c *int
+	var d *string
+
+	result1 := UnwarpOrDefault(&a)
+	result2 := UnwarpOrDefault(&b)
+	result3 := UnwarpOrDefault(c)
+	result4 := UnwarpOrDefault(d)
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+	fmt.Println(result4)
+
+	// Output:
+	// 123
+	// abc
+	// 0
+	//
+}
+
 func ExampleExtractPointer() {
 	a := 1
 	b := &a