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/entdec.c

diff --git a/aom_dsp/entdec.c b/aom_dsp/entdec.c
index a4e1d1d..880b885 100644
--- a/aom_dsp/entdec.c
+++ b/aom_dsp/entdec.c
@@ -518,7 +518,7 @@
   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_dec_tell(od_ec_dec *dec) {
+int od_ec_dec_tell(const od_ec_dec *dec) {
   return ((dec->end - dec->eptr) + (dec->bptr - dec->buf)) * 8 - dec->cnt -
          dec->nend_bits + dec->tell_offs;
 }
@@ -529,6 +529,6 @@
   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_dec_tell_frac(od_ec_dec *dec) {
+uint32_t od_ec_dec_tell_frac(const od_ec_dec *dec) {
   return od_ec_tell_frac(od_ec_dec_tell(dec), dec->rng);
 }