update C snipplets

code/C/atomic.c

@@ -5,26 +5,24 @@
 atomic_int acnt;
 int cnt;
 
-int f(void* thr_data)
-{
-    (void)thr_data;
-    for(int n = 0; n < 1000; ++n) {
-        ++cnt;
-        ++acnt;
-        // for this example, relaxed memory order is sufficient, e.g.
-        // atomic_fetch_add_explicit(&acnt, 1, memory_order_relaxed);
-    }
-    return 0;
+int f(void *thr_data) {
+  (void)thr_data;
+  for (int n = 0; n < 1000; ++n) {
+    ++cnt;
+    ++acnt;
+    // for this example, relaxed memory order is sufficient, e.g.
+    // atomic_fetch_add_explicit(&acnt, 1, memory_order_relaxed);
+  }
+  return 0;
 }
 
-int main(void)
-{
-    thrd_t thr[10];
-    for(int n = 0; n < 10; ++n)
-        thrd_create(&thr[n], f, NULL);
-    for(int n = 0; n < 10; ++n)
-        thrd_join(thr[n], NULL);
+int main(void) {
+  thrd_t thr[10];
+  for (int n = 0; n < 10; ++n)
+    thrd_create(&thr[n], f, NULL);
+  for (int n = 0; n < 10; ++n)
+    thrd_join(thr[n], NULL);
 
-    printf("The atomic counter is %u\n", acnt);
-    printf("The non-atomic counter is %u\n", cnt);
+  printf("The atomic counter is %u\n", acnt);
+  printf("The non-atomic counter is %u\n", cnt);
 }