diff options
| author | Alex Converse <aconverse@google.com> | 2011-04-09 17:22:04 -0700 |
|---|---|---|
| committer | Alex Converse <alex.converse@gmail.com> | 2011-04-11 21:47:42 -0700 |
| commit | 187a537904ef2193a4b5e0312349f95223ff8610 (patch) | |
| tree | cf34aff4d5812a7b11731316e642d393fd9648b4 /libavcodec/vorbis_enc.c | |
| parent | db46be01ecf44608932cfa33e8914a4c38b93431 (diff) | |
| download | ffmpeg-187a537904ef2193a4b5e0312349f95223ff8610.tar.gz | |
Convert some undefined 1<<31 shifts into 1U<<31.
According to ISO 9899:1999 S 6.5.7/4:
The result of E1 << E2 is E1 left-shifted E2 bit positions; vacated bits
are filled with zeros. If E1 has an unsigned type, the value of the
result is E1× 2^E2, reduced modulo one more than the maximum value
representable in the result type. If E1 has a signed type and
nonnegative value, and E1× 2^E2 is representable in the result type, then
that is the resulting value; otherwise, the behavior is undefined.
Diffstat (limited to 'libavcodec/vorbis_enc.c')
| -rw-r--r-- | libavcodec/vorbis_enc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/vorbis_enc.c b/libavcodec/vorbis_enc.c index 7c5d521464..748fbd66fe 100644 --- a/libavcodec/vorbis_enc.c +++ b/libavcodec/vorbis_enc.c @@ -394,7 +394,7 @@ static void put_float(PutBitContext *pb, float f) mant = (int)ldexp(frexp(f, &exp), 20); exp += 788 - 20; if (mant < 0) { - res |= (1 << 31); + res |= (1U << 31); mant = -mant; } res |= mant | (exp << 21); |