diff options
| author |  Abseil Team <absl-team@google.com> | 2020-11-23 17:05:17 -0800 |
|---|---|---|
| committer |  Gennadiy Rozental <rogeeff@google.com> | 2020-11-24 02:43:25 -0500 |
| commit | 5d8fc9192245f0ea67094af57399d7931d6bd53f (patch) | |
| tree | 99d50d3b52bbd768ee5f5c1d7ecf8c46678e7192 /absl/strings/internal/cord_internal.h | |
| parent | e19260fd7dbef881492fd73891e0be5bd4a09b95 (diff) | |
Export of internal Abseil changes
--
fcedaa5714efab8738446fa21620b827a40a3458 by Derek Mauro <dmauro@google.com>:
Uses Wyhash in the implementation of absl::Hash for hashing sequences
of more than 16 bytes on some platforms.
Due to the per-process randomization of the seed used by absl::Hash, users
should not notice this change, other than possibly getting better performance.
This change only affects platforms where absl::uint128 is implemented
with an intrinsic (and where sizeof(size_t)==8) since Wyhash relies on
fast 128-bit multiplication for speed.
PiperOrigin-RevId: 343956735
--
085e108c760084f19caa21dbeb2118de2be3f8f0 by Abseil Team <absl-team@google.com>:
Internal change for cord ring
PiperOrigin-RevId: 343919274
--
4c333278ad14d6692f203074b902506008ad624a by Jorg Brown <jorg@google.com>:
Minimize strings_internal::StringConstant further, by removing the need for the compiler to instantiate a compile-time class function.
PiperOrigin-RevId: 343878568
--
71c3c8c7b7821b67997e3d5345aaec67f93f266f by Abseil Team <absl-team@google.com>:
Internal change
PiperOrigin-RevId: 343838259
GitOrigin-RevId: fcedaa5714efab8738446fa21620b827a40a3458
Change-Id: Ifb91895a82d11e743acd42fe97ab7fb70712b7df
Diffstat (limited to 'absl/strings/internal/cord_internal.h')
| -rw-r--r-- | absl/strings/internal/cord_internal.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/absl/strings/internal/cord_internal.h b/absl/strings/internal/cord_internal.h index aa91a691..195a7988 100644 --- a/absl/strings/internal/cord_internal.h +++ b/absl/strings/internal/cord_internal.h @@ -116,10 +116,16 @@ enum CordRepKind { CONCAT = 0, EXTERNAL = 1, SUBSTRING = 2, + RING = 3, // We have different tags for different sized flat arrays, - // starting with FLAT - FLAT = 3, + // starting with FLAT, and limited to MAX_FLAT_TAG. The 224 value is based on + // the current 'size to tag' encoding of 8 / 32 bytes. If a new tag is needed + // in the future, then 'FLAT' and 'MAX_FLAT_TAG' should be adjusted as well + // as the Tag <---> Size logic so that FLAT stil represents the minimum flat + // allocation size. (32 bytes as of now). + FLAT = 4, + MAX_FLAT_TAG = 224, }; struct CordRep { |