Added an atomic max for int

src/atomic.h

@@ -38,6 +38,29 @@
 #define atomic_cas(v, o, n) __sync_val_compare_and_swap(v, o, n)
 #define atomic_swap(v, n) __sync_lock_test_and_set(v, n)
 
+/**
+ * @brief Atomic min operation on ints.
+ *
+ * This is a text-book implementation based on an atomic CAS.
+ *
+ * @param address The address to update.
+ * @param y The value to update the address with.
+ */
+__attribute__((always_inline)) INLINE static void atomic_min(
+    volatile int *const address, const int y) {
+
+  int *int_ptr = (int *)address;
+
+  int test_val, old_val, new_val;
+  old_val = *address;
+
+  do {
+    test_val = old_val;
+    new_val = min(old_val, y);
+    old_val = atomic_cas(int_ptr, test_val, new_val);
+  } while (test_val != old_val);
+}
+
 /**
  * @brief Atomic min operation on floats.
  *
@@ -69,29 +92,6 @@ __attribute__((always_inline)) INLINE static void atomic_min_f(
   } while (test_val.as_int != old_val.as_int);
 }
 
-/**
- * @brief Atomic min operation on ints.
- *
- * This is a text-book implementation based on an atomic CAS.
- *
- * @param address The address to update.
- * @param y The value to update the address with.
- */
-__attribute__((always_inline)) INLINE static void atomic_min(
-    volatile int *address, int y) {
-
-  int *int_ptr = (int *)address;
-
-  int test_val, old_val, new_val;
-  old_val = *address;
-
-  do {
-    test_val = old_val;
-    new_val = min(old_val, y);
-    old_val = atomic_cas(int_ptr, test_val, new_val);
-  } while (test_val != old_val);
-}
-
 /**
  * @brief Atomic min operation on doubles.
  *
@@ -145,6 +145,29 @@ __attribute__((always_inline)) INLINE static void atomic_max_c(
   } while (test_val != old_val);
 }
 
+/**
+ * @brief Atomic max operation on ints.
+ *
+ * This is a text-book implementation based on an atomic CAS.
+ *
+ * @param address The address to update.
+ * @param y The value to update the address with.
+ */
+__attribute__((always_inline)) INLINE static void atomic_max(
+    volatile int *const address, const int y) {
+
+  int *int_ptr = (int *)address;
+
+  int test_val, old_val, new_val;
+  old_val = *address;
+
+  do {
+    test_val = old_val;
+    new_val = max(old_val, y);
+    old_val = atomic_cas(int_ptr, test_val, new_val);
+  } while (test_val != old_val);
+}
+
 /**
  * @brief Atomic max operation on floats.
  *