commit 19698a7084f1d007b755806afb850c4cf9cad83b
author Nathan E. Egge <negge@mozilla.com> Thu Aug 18 02:34:53 2016 -0400
committer Yaowu Xu <yaowu@google.com> Mon Oct 17 12:16:27 2016 -0700
tree 6d77e6a1030af6cd7fbf033f485227e2d2b8185b
parent f3035f2bc7b20931d84e8fb2e0f144e63a272fd7

Fix warning when discarding const qualifier.

Cherry-pick Daala 211c2a41: Clean up EC tell() and tell_frac() functions.
Add a const qualifier to the od_ec_enc and od_ec_dec parameters of
 the od_ec_enc_tell(), od_ec_enc_tell_frac(), od_ec_dec_tell(), and
 od_ec_dec_tell_frac() functions.
Add an OD_WARN_UNUSED_RESULT to od_ec_enc_tell_frac().

Change-Id: Ia50e2fd75e98d8a03d993449d658b695cf56e6fb

aom_dsp/entenc.c

diff --git a/aom_dsp/entenc.c b/aom_dsp/entenc.c
index 019c6fb..3e9cb62 100644
--- a/aom_dsp/entenc.c
+++ b/aom_dsp/entenc.c
@@ -647,7 +647,7 @@
   Return: The number of bits.
           This will always be slightly larger than the exact value (e.g., all
            rounding error is in the positive direction).*/
-int od_ec_enc_tell(od_ec_enc *enc) {
+int od_ec_enc_tell(const od_ec_enc *enc) {
   /*The 10 here counteracts the offset of -9 baked into cnt, and adds 1 extra
      bit, which we reserve for terminating the stream.*/
   return (enc->offs + enc->end_offs) * 8 + enc->cnt + enc->nend_bits + 10;
@@ -662,7 +662,7 @@
   Return: The number of bits scaled by 2**OD_BITRES.
           This will always be slightly larger than the exact value (e.g., all
            rounding error is in the positive direction).*/
-uint32_t od_ec_enc_tell_frac(od_ec_enc *enc) {
+uint32_t od_ec_enc_tell_frac(const od_ec_enc *enc) {
   return od_ec_tell_frac(od_ec_enc_tell(enc), enc->rng);
 }