diff-man 0.1.7

A simple diff utility lib
Documentation 
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diff --git a/tmp.rs b/tmp.rs
index 804e316..11cf792 100644
--- a/tmp.rs
+++ b/tmp.rs
@@ -8,14 +8,14 @@ pub fn add(a: i32, b: i32) -> i64 {
     (a + b) as i64
 }
 
-pub fn sub(a: i32, b: i32) -> i64 {
-    (a - b) as i64
-}
-
 pub fn mul(a: i32, b: i32) -> i64 {
     (a * b) as i64
 }
 
+pub fn mods(a: i32, b: i32) -> i64 {
+    (a % b) as i64
+}
+
 pub fn div(a: i32, b: i32) -> i64 {
     (a / b) as i64
 }