fix modint

indy256 · indy256 · commit 67920122bf62 · 2020-05-30T12:44:10.000+03:00
diff --git a/cpp/numbertheory/modint.h b/cpp/numbertheory/modint.h
@@ -51,9 +51,9 @@ struct modint {
         return u;
     }
 
-    bool operator==(modint rhs) { return value == rhs.value; }
+    bool operator==(modint rhs) const { return value == rhs.value; }
 
-    bool operator!=(modint rhs) { return !(*this == rhs); }
+    bool operator!=(modint rhs) const { return !(*this == rhs); }
 
     friend modint operator+(modint lhs, modint rhs) { return lhs += rhs; }
 

Original file line number	Diff line number	Diff line change
`@@ -51,9 +51,9 @@ struct modint {`
`51`	`51`	`return u;`
`52`	`52`	`}`
`53`	`53`
`54`		`- bool operator==(modint rhs) { return value == rhs.value; }`
	`54`	`+ bool operator==(modint rhs) const { return value == rhs.value; }`
`55`	`55`
`56`		`- bool operator!=(modint rhs) { return !(*this == rhs); }`
	`56`	`+ bool operator!=(modint rhs) const { return !(*this == rhs); }`
`57`	`57`
`58`	`58`	`friend modint operator+(modint lhs, modint rhs) { return lhs += rhs; }`
`59`	`59`