iterate

tests/test_data.rs

@@ -1,13 +1,27 @@
-
 #[test]
 pub fn test_distance() {
+    let _ = x::dur![ 5 days 4 hours 7 minutes 2 seconds 2 minutes ];
 
-    let a = x::dur![ 5 days 4 hours 7 minutes 2 seconds 2 minutes ];
-
-    let a = [0u8,2,3];
+    let a = [0u8, 2, 3];
     let p1 = &a[0];
     let p2 = &a[2];
     assert_eq!(x::distance(p1, p2), 2);
     assert_eq!(x::distance(p2, p1), 2);
     assert_eq!(x::distance(p1, p1), 0);
+
+
+    let a = b"Hello World\0".as_ptr();
+    assert_eq!(Some(11), x::iterate(a).position(|&a| a == 0));
+
+    let b = b"H\0e\0l\0l\0o\0 \0W\0o\0r\0l\0d\0\0\0".as_ptr() as *const u16;
+    let bytes: Vec<u16> = x::iterate(b)
+        .take_while(|&&c| c != 0)
+        .cloned().collect();
+    assert_eq!("Hello World", String::from_utf16_lossy(bytes.as_slice()));
+
+
+    let hello_world: String = char::decode_utf16(
+        x::iterate(b).cloned().take_while(|&c| c != 0))
+        .filter_map(|_r| _r.ok()).collect();
+    assert_eq!("Hello World", hello_world);
 }