Add and run WebKit based clang-format

src/test_arena.c

@@ -1,6 +1,5 @@
 
 
-
 // _start test_arena_alloc.c
 #include "arena.h"
 
@@ -9,7 +8,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-static struct arena *default_arena = NULL;
+static struct arena* default_arena = NULL;
 
 int main()
 {
@@ -19,14 +18,17 @@ int main()
         err(errno, "failed to allocate arena");
     }
 
-	printf("\ntest 1: %s", "attempt to allocate arena->cap x 1 byte");
+    printf("\nAttempt to do `arena->cap` allocations of 1 byte");
 
-	for (size_t i = 0; i < default_arena->cap; i++) {
-		volatile void *c = arena_alloc(default_arena, 1);
-		if (c == NULL) {
-			err(EXIT_FAILURE, "failed to allocate memory");
-		}	
-	}
+    for (size_t i = 0; i < default_arena->cap; i++) {
+        char* c = arena_alloc(default_arena, 1);
+        *c = i & 0xff;
+        if (c == NULL) {
+            err(EXIT_FAILURE, "failed to allocate memory");
+        }
+    }
+
+    printf("\n    OK");
 
     return 0;
 }