Fix dangerous casts

On Windows 64-bit, the size of long is 32-bit, thus any pointer to long cast is
not valid. In any case, one should use intptr_t and ptrdiff_t when casting
to integers. This commit attempts to fix all instances reported by GCC.
When relevant, I replaced code by the macros PTR_ADD, ALIGN_UP from system.h

Change-Id: I2273b0e8465d3c4689824717ed5afa5ed238a2dc

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/rbcodec/codecs/liba52/bitstream.c b/lib/rbcodec/codecs/liba52/bitstream.c
index 155368f1ed..69dd1dc5b7 100644
--- a/lib/rbcodec/codecs/liba52/bitstream.c
+++ b/lib/rbcodec/codecs/liba52/bitstream.c
@@ -35,7 +35,7 @@ void a52_bitstream_set_ptr (a52_state_t * state, uint8_t * buf)
 {
     int align;
 
-    align = (long)buf & 3;
+    align = (intptr_t)buf & 3;
     state->buffer_start = (uint32_t *) (buf - align);
     state->bits_left = 0;
     state->current_word = 0;