signed integer overflow is undefined in C
Fixes the following gcc warnings:
In file included from libavcodec/hevcpred.c:27:0:
libavcodec/hevcpred_template.c: In function ‘intra_pred_8’:
libavcodec/hevcpred_template.c:302:9: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow]
In file included from libavcodec/hevcpred.c:31:0:
libavcodec/hevcpred_template.c: In function ‘intra_pred_9’:
libavcodec/hevcpred_template.c:302:9: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow]
In file included from libavcodec/hevcpred.c:35:0:
libavcodec/hevcpred_template.c: In function ‘intra_pred_10’:
libavcodec/hevcpred_template.c:302:9: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow]
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
cherry picked from commit b971f2c8fdc60f8bab605a6e8060492eb548a53a
cherry picked from commit e57b0a2c915ce6b8a9d57b8292f6581f0680842e
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Michael Niedermayer