Clang-format c/cpp files in test directory (#4192)

This clang-formats c/cpp files in test/ directory, and updates
clang-format-diff.sh so that it does not ignore test/ directory anymore.

bigswitch.cpp is excluded from formatting, because there are big
commented-out code blocks, and apparently clang-format messes up
formatting in them. Also to make matters worse, different clang-format
versions do different things on those commented-out code blocks.

1 files changed, 128 insertions, 135 deletions

diff --git a/test/fannkuch.cpp b/test/fannkuch.cpp
index f615ba2f8..86791a98d 100644
--- a/test/fannkuch.cpp
+++ b/test/fannkuch.cpp
@@ -9,151 +9,144 @@
  * Modified for emscripten by azakai
  */
 
-#include <stdlib.h>
 #include <stdio.h>
+#include <stdlib.h>
 
 struct worker_args {
-   int i, n;
-   struct worker_args *next;
+  int i, n;
+  struct worker_args* next;
 };
 
-int
-fannkuch_worker(void *_arg)
-{
-   struct worker_args *args = (worker_args*)_arg;
-   int *perm1, *count, *perm;
-   int maxflips, flips, i, n, r, j, k, tmp;
-
-   maxflips = 0;
-   n = args->n;
-   perm1 = (int*)malloc(n * sizeof(int));
-   perm = (int*)malloc(n * sizeof(int));
-   count = (int*)malloc(n * sizeof(int));
-   for (i = 0; i < n; i++)
-      perm1[i] = i;
-   perm1[args->i] = n - 1;
-   perm1[n - 1] = args->i;
-   r = n;
-
-   for (;;) {
-      for (; r > 1; r--)
-         count[r - 1] = r;
-      if (perm1[0] != 0 && perm1[n - 1] != n - 1) {
-         for (i = 0; i < n; i++)
-            perm[i] = perm1[i];
-         flips = 0;
-         k = perm[0];
-         do {
-            for (i = 1, j = k - 1; i < j; i++, j--) {
-               tmp = perm[i];
-               perm[i] = perm[j];
-               perm[j] = tmp;
-            }
-            flips++;
-            tmp = perm[k];
-            perm[k] = k;
-            k = tmp;
-         } while (k);
-         if (maxflips < flips)
-            maxflips = flips;
+int fannkuch_worker(void* _arg) {
+  struct worker_args* args = (worker_args*)_arg;
+  int *perm1, *count, *perm;
+  int maxflips, flips, i, n, r, j, k, tmp;
+
+  maxflips = 0;
+  n = args->n;
+  perm1 = (int*)malloc(n * sizeof(int));
+  perm = (int*)malloc(n * sizeof(int));
+  count = (int*)malloc(n * sizeof(int));
+  for (i = 0; i < n; i++)
+    perm1[i] = i;
+  perm1[args->i] = n - 1;
+  perm1[n - 1] = args->i;
+  r = n;
+
+  for (;;) {
+    for (; r > 1; r--)
+      count[r - 1] = r;
+    if (perm1[0] != 0 && perm1[n - 1] != n - 1) {
+      for (i = 0; i < n; i++)
+        perm[i] = perm1[i];
+      flips = 0;
+      k = perm[0];
+      do {
+        for (i = 1, j = k - 1; i < j; i++, j--) {
+          tmp = perm[i];
+          perm[i] = perm[j];
+          perm[j] = tmp;
+        }
+        flips++;
+        tmp = perm[k];
+        perm[k] = k;
+        k = tmp;
+      } while (k);
+      if (maxflips < flips)
+        maxflips = flips;
+    }
+    for (;;) {
+      if (r >= n - 1) {
+        free(perm1);
+        free(perm);
+        free(count);
+        return maxflips;
       }
-      for (;;) {
-         if (r >= n - 1) {
-            free(perm1);
-            free(perm);
-            free(count);
-            return maxflips;
-         }
-
-         {
-            int p0 = perm1[0];
-            for (i = 0; i < r; i++)
-               perm1[i] = perm1[i + 1];
-            perm1[i] = p0;
-         }
-         if (--count[r] > 0)
-            break;
-         r++;
+
+      {
+        int p0 = perm1[0];
+        for (i = 0; i < r; i++)
+          perm1[i] = perm1[i + 1];
+        perm1[i] = p0;
       }
-   }
+      if (--count[r] > 0)
+        break;
+      r++;
+    }
+  }
 }
 
-static int
-fannkuch(int n)
-{
-   struct worker_args *args, *targs;
-   int showmax = 30;
-   int *perm1, *count, i, r, maxflips, flips;
-
-   args = NULL;
-   for (i = 0; i < n - 1; i++) {
-      targs = (worker_args*)malloc(sizeof(struct worker_args));
-      targs->i = i;
-      targs->n = n;
-      targs->next = args;
-      args = targs;
-   }
-
-   perm1 = (int*)malloc(n * sizeof(int));
-   count = (int*)malloc(n * sizeof(int));
-
-   for (i = 0; i < n; i++)
-      perm1[i] = i;
-
-   r = n;
-   for (;;) {
-      if (showmax) {
-         for (i = 0; i < n; i++)
-            printf("%d", perm1[i] + 1);
-         printf("\n");
-         showmax--;
-      } else
-         goto cleanup;
-
-      for (; r > 1; r--)
-         count[r - 1] = r;
-
-      for (;;) {
-         if (r == n)
-            goto cleanup;
-         {
-            int p0 = perm1[0];
-            for (i = 0; i < r; i++)
-               perm1[i] = perm1[i + 1];
-            perm1[i] = p0;
-         }
-         if (--count[r] > 0)
-            break;
-
-         r++;
+static int fannkuch(int n) {
+  struct worker_args *args, *targs;
+  int showmax = 30;
+  int *perm1, *count, i, r, maxflips, flips;
+
+  args = NULL;
+  for (i = 0; i < n - 1; i++) {
+    targs = (worker_args*)malloc(sizeof(struct worker_args));
+    targs->i = i;
+    targs->n = n;
+    targs->next = args;
+    args = targs;
+  }
+
+  perm1 = (int*)malloc(n * sizeof(int));
+  count = (int*)malloc(n * sizeof(int));
+
+  for (i = 0; i < n; i++)
+    perm1[i] = i;
+
+  r = n;
+  for (;;) {
+    if (showmax) {
+      for (i = 0; i < n; i++)
+        printf("%d", perm1[i] + 1);
+      printf("\n");
+      showmax--;
+    } else
+      goto cleanup;
+
+    for (; r > 1; r--)
+      count[r - 1] = r;
+
+    for (;;) {
+      if (r == n)
+        goto cleanup;
+      {
+        int p0 = perm1[0];
+        for (i = 0; i < r; i++)
+          perm1[i] = perm1[i + 1];
+        perm1[i] = p0;
       }
-   }
-
-    cleanup:
-   free(perm1);
-   free(count);
-   maxflips = 0;
-   while (args != NULL) {
-      flips = (int)fannkuch_worker(args);
-      if (maxflips < flips)
-         maxflips = flips;
-      targs = args;
-      args = args->next;
-      free(targs);
-   }
-   return maxflips;
+      if (--count[r] > 0)
+        break;
+
+      r++;
+    }
+  }
+
+cleanup:
+  free(perm1);
+  free(count);
+  maxflips = 0;
+  while (args != NULL) {
+    flips = (int)fannkuch_worker(args);
+    if (maxflips < flips)
+      maxflips = flips;
+    targs = args;
+    args = args->next;
+    free(targs);
+  }
+  return maxflips;
 }
 
-int
-main(int argc, char **argv)
-{
-   int n = argc > 1 ? atoi(argv[1]) : 0;
-
-   if (n < 1) {
-      printf("Wrong argument.\n");
-      return 1;
-   }
-   printf("Pfannkuchen(%d) = %d.\n", n, fannkuch(n));
-   return 0;
-}
+int main(int argc, char** argv) {
+  int n = argc > 1 ? atoi(argv[1]) : 0;
 
+  if (n < 1) {
+    printf("Wrong argument.\n");
+    return 1;
+  }
+  printf("Pfannkuchen(%d) = %d.\n", n, fannkuch(n));
+  return 0;
+}