avutil/mem: K&R formatting cosmetics

libavutil/mem.c

@@ -58,8 +58,8 @@ void  free(void *ptr);
 #endif /* MALLOC_PREFIX */
 
 /* You can redefine av_malloc and av_free in your project to use your
-   memory allocator. You do not need to suppress this file because the
-   linker will do it automatically. */
+ * memory allocator. You do not need to suppress this file because the
+ * linker will do it automatically. */
 
 void *av_malloc(size_t size)
 {
@@ -69,46 +69,46 @@ void *av_malloc(size_t size)
 #endif
 
     /* let's disallow possible ambiguous cases */
-    if (size > (INT_MAX-32) || !size)
+    if (size > (INT_MAX - 32) || !size)
         return NULL;
 
 #if CONFIG_MEMALIGN_HACK
-    ptr = malloc(size+32);
-    if(!ptr)
+    ptr = malloc(size + 32);
+    if (!ptr)
         return ptr;
-    diff= ((-(long)ptr - 1)&31) + 1;
-    ptr = (char*)ptr + diff;
-    ((char*)ptr)[-1]= diff;
+    diff              = ((-(long)ptr - 1) & 31) + 1;
+    ptr               = (char *)ptr + diff;
+    ((char *)ptr)[-1] = diff;
 #elif HAVE_POSIX_MEMALIGN
-    if (posix_memalign(&ptr,32,size))
+    if (posix_memalign(&ptr, 32, size))
         ptr = NULL;
 #elif HAVE_ALIGNED_MALLOC
     ptr = _aligned_malloc(size, 32);
 #elif HAVE_MEMALIGN
-    ptr = memalign(32,size);
+    ptr = memalign(32, size);
     /* Why 64?
-       Indeed, we should align it:
-         on 4 for 386
-         on 16 for 486
-         on 32 for 586, PPro - K6-III
-         on 64 for K7 (maybe for P3 too).
-       Because L1 and L2 caches are aligned on those values.
-       But I don't want to code such logic here!
+     * Indeed, we should align it:
+     *   on  4 for 386
+     *   on 16 for 486
+     *   on 32 for 586, PPro - K6-III
+     *   on 64 for K7 (maybe for P3 too).
+     * Because L1 and L2 caches are aligned on those values.
+     * But I don't want to code such logic here!
      */
-     /* Why 32?
-        For AVX ASM. SSE / NEON needs only 16.
-        Why not larger? Because I did not see a difference in benchmarks ...
+    /* Why 32?
+     * For AVX ASM. SSE / NEON needs only 16.
+     * Why not larger? Because I did not see a difference in benchmarks ...
      */
-     /* benchmarks with P3
-        memalign(64)+1          3071,3051,3032
-        memalign(64)+2          3051,3032,3041
-        memalign(64)+4          2911,2896,2915
-        memalign(64)+8          2545,2554,2550
-        memalign(64)+16         2543,2572,2563
-        memalign(64)+32         2546,2545,2571
-        memalign(64)+64         2570,2533,2558
-
-        BTW, malloc seems to do 8-byte alignment by default here.
+    /* benchmarks with P3
+     * memalign(64) + 1          3071, 3051, 3032
+     * memalign(64) + 2          3051, 3032, 3041
+     * memalign(64) + 4          2911, 2896, 2915
+     * memalign(64) + 8          2545, 2554, 2550
+     * memalign(64) + 16         2543, 2572, 2563
+     * memalign(64) + 32         2546, 2545, 2571
+     * memalign(64) + 64         2570, 2533, 2558
+     *
+     * BTW, malloc seems to do 8-byte alignment by default here.
      */
 #else
     ptr = malloc(size);
@@ -123,14 +123,15 @@ void *av_realloc(void *ptr, size_t size)
 #endif
 
     /* let's disallow possible ambiguous cases */
-    if(size > (INT_MAX-16) )
+    if (size > (INT_MAX - 16))
         return NULL;
 
 #if CONFIG_MEMALIGN_HACK
     //FIXME this isn't aligned correctly, though it probably isn't needed
-    if(!ptr) return av_malloc(size);
-    diff= ((char*)ptr)[-1];
-    return (char*)realloc((char*)ptr - diff, size + diff) + diff;
+    if (!ptr)
+        return av_malloc(size);
+    diff = ((char *)ptr)[-1];
+    return (char *)realloc((char *)ptr - diff, size + diff) + diff;
 #elif HAVE_ALIGNED_MALLOC
     return _aligned_realloc(ptr, size, 32);
 #else
@@ -142,7 +143,7 @@ void av_free(void *ptr)
 {
 #if CONFIG_MEMALIGN_HACK
     if (ptr)
-        free((char*)ptr - ((char*)ptr)[-1]);
+        free((char *)ptr - ((char *)ptr)[-1]);
 #elif HAVE_ALIGNED_MALLOC
     _aligned_free(ptr);
 #else
@@ -152,7 +153,7 @@ void av_free(void *ptr)
 
 void av_freep(void *arg)
 {
-    void **ptr= (void**)arg;
+    void **ptr = (void **)arg;
     av_free(*ptr);
     *ptr = NULL;
 }
@@ -167,8 +168,8 @@ void *av_mallocz(size_t size)
 
 char *av_strdup(const char *s)
 {
-    char *ptr= NULL;
-    if(s){
+    char *ptr = NULL;
+    if (s) {
         int len = strlen(s) + 1;
         ptr = av_malloc(len);
         if (ptr)

libavutil/mem.h

@@ -89,7 +89,7 @@ void *av_malloc(size_t size) av_malloc_attrib av_alloc_size(1);
  * be allocated.
  * @see av_malloc()
  */
-av_alloc_size(1,2) static inline void *av_malloc_array(size_t nmemb, size_t size)
+av_alloc_size(1, 2) static inline void *av_malloc_array(size_t nmemb, size_t size)
 {
     if (size <= 0 || nmemb >= INT_MAX / size)
         return NULL;
@@ -140,7 +140,7 @@ void *av_mallocz(size_t size) av_malloc_attrib av_alloc_size(1);
  * @see av_mallocz()
  * @see av_malloc_array()
  */
-av_alloc_size(1,2) static inline void *av_mallocz_array(size_t nmemb, size_t size)
+av_alloc_size(1, 2) static inline void *av_mallocz_array(size_t nmemb, size_t size)
 {
     if (size <= 0 || nmemb >= INT_MAX / size)
         return NULL;