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| author | Karl Williamson <khw@cpan.org> | 2021-07-20 07:22:00 -0600 |
|---|---|---|
| committer | Karl Williamson <khw@cpan.org> | 2021-07-30 05:41:27 -0600 |
| commit | 995a49544ee5d0b46679907f5ba9fe50be890438 (patch) | |
| tree | e959e2c9eab948bb79a0fc8a676276ebf04b4c6b /globvar.sym | |
| parent | bf874180e9a7a8fbb74ab7eaa5c683ecc5a6ffc7 (diff) | |
| download | perl-995a49544ee5d0b46679907f5ba9fe50be890438.tar.gz | |
Add 64bit single-1bit_pos()
This will prove useful in future commits on platforms that have 64 bit
capability.
The deBruijn sequence used here, taken from the internet, differs
from the 32 bit one in how they treat a word with no set bits. But this
is considered undefined behavior, so that difference is immaterial.
Apparently figuring this out uses brute force methods, and so I decided
to live with this difference, rather than to expend the time needed to
bring them into sync.
Diffstat (limited to 'globvar.sym')
| -rw-r--r-- | globvar.sym | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/globvar.sym b/globvar.sym index a3c7c1043b..22e353f34d 100644 --- a/globvar.sym +++ b/globvar.sym @@ -13,6 +13,7 @@ PL_charclass PL_check PL_core_reg_engine PL_deBruijn_bitpos_tab32 +PL_deBruijn_bitpos_tab64 PL_EXACTFish_bitmask PL_EXACT_REQ8_bitmask PL_extended_utf8_dfa_tab |