add min test

Author: justinmeiners

code/minmax.h

@@ -23,7 +23,7 @@ struct less {
 
 template <typename T>
 const T& min(const T& a, const T& b) {
-  return min(a, b, std::less<T>());
+  return min(a, b, less<T>());
 }
 
 template<typename T, typename Compare>
@@ -37,6 +37,10 @@ const T& max(const T& a, const T& b, Compare cmp) {
   }
 }
 
+template <typename T>
+const T& max(const T& a, const T& b) {
+  return max(a, b, less<T>());
+}
 
 template<typename T, typename Compare>
 // requires Compare is a StrictWeakOrdering on T

code/test_min.cpp

@@ -0,0 +1,10 @@
+#include <cassert>
+#include "minmax.h"
+
+int main() {
+    assert(min(1, 2) == 1);
+    assert(min(2, 1) == 1);
+
+    assert(max(1, 2) == 2);
+    assert(max(2, 1) == 2);
+}