diff options
Diffstat (limited to 'crypto/src/util/Longs.cs')
| -rw-r--r-- | crypto/src/util/Longs.cs | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/crypto/src/util/Longs.cs b/crypto/src/util/Longs.cs index 45dd91090..0bb35de25 100644 --- a/crypto/src/util/Longs.cs +++ b/crypto/src/util/Longs.cs @@ -1,5 +1,6 @@ using System; #if NETCOREAPP3_0_OR_GREATER +using System.Numerics; using System.Runtime.Intrinsics.X86; #endif @@ -108,24 +109,40 @@ namespace Org.BouncyCastle.Utilities public static long RotateLeft(long i, int distance) { +#if NETCOREAPP3_0_OR_GREATER + return (long)BitOperations.RotateLeft((ulong)i, distance); +#else return (i << distance) ^ (long)((ulong)i >> -distance); +#endif } [CLSCompliant(false)] public static ulong RotateLeft(ulong i, int distance) { +#if NETCOREAPP3_0_OR_GREATER + return BitOperations.RotateLeft(i, distance); +#else return (i << distance) ^ (i >> -distance); +#endif } public static long RotateRight(long i, int distance) { +#if NETCOREAPP3_0_OR_GREATER + return (long)BitOperations.RotateRight((ulong)i, distance); +#else return (long)((ulong)i >> distance) ^ (i << -distance); +#endif } [CLSCompliant(false)] public static ulong RotateRight(ulong i, int distance) { +#if NETCOREAPP3_0_OR_GREATER + return BitOperations.RotateRight(i, distance); +#else return (i >> distance) ^ (i << -distance); +#endif } } } |