[Zucchini] Introduce bit operations into algorithm.h.

This CL makes algorithm.h in Chromium match trunk's version. Details:
- Add {GetBit(), GetSignedBits(), GetUnsignedBits(), SignedFit()}.
  These will be used by the ARM Disassembler.
- Rename ceil() to AlignCeil() to avoid confusion with ceil() from
  <cmath>.
- Extensive unit tests.
- Minor enum type fix in disassembler_win32.h (offset_t should not
  be used to represent lengths).

Change-Id: Icf9ce254bce2e5a3e9c286dbb5a704aeacd8bc35
Reviewed-on: https://chromium-review.googlesource.com/1098556
Reviewed-by: Samuel Huang <huangs@chromium.org>
Reviewed-by: Greg Thompson <grt@chromium.org>
Commit-Queue: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#566893}
NOKEYCHECK=True
GitOrigin-RevId: 2c50b5af45fa271f06317419f6b8bfc5f4a80be0

1 files changed, 1 insertions, 1 deletions

diff --git a/reloc_utils.cc b/reloc_utils.cc
index 84f488e..c9fb432 100644
--- a/reloc_utils.cc
+++ b/reloc_utils.cc
@@ -81,7 +81,7 @@ RelocRvaReaderWin32::RelocRvaReaderWin32(
   offset_t cur_reloc_units_offset = cur_reloc_units_.begin() - image_.begin();
   if (lo > cur_reloc_units_offset) {
     offset_t delta =
-        ceil<offset_t>(lo - cur_reloc_units_offset, kRelocUnitSize);
+        AlignCeil<offset_t>(lo - cur_reloc_units_offset, kRelocUnitSize);
     cur_reloc_units_.Skip(delta);
   }
 }