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| author | Karl Williamson <khw@cpan.org> | 2021-07-20 11:51:59 -0600 |
|---|---|---|
| committer | Karl Williamson <khw@cpan.org> | 2021-07-30 05:41:28 -0600 |
| commit | 19d2c525bfed3f9eea1099e6eb745dbb50ca818b (patch) | |
| tree | a54fc03ca6f4b1fdf8157d9b29b7747e50b0d198 /proto.h | |
| parent | 58ddb8c5c1121d947ee72818b81ee254edb17699 (diff) | |
| download | perl-19d2c525bfed3f9eea1099e6eb745dbb50ca818b.tar.gz | |
Create and use 32 and 64 bit lsbit_pos() fcns
The existing code to determine the position of the least significant 1
bit in a word is extracted from variant_byte_number() and moved to a new
function in preparation for being called from other places.
A U32 version is created, and on 64 bit platforms, a second, parallel,
version taking a U64 argument is also created. This is because future
commits may care about the word size differences.
Diffstat (limited to 'proto.h')
| -rw-r--r-- | proto.h | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -1861,6 +1861,12 @@ PERL_CALLCONV I32 Perl_looks_like_number(pTHX_ SV *const sv) #define PERL_ARGS_ASSERT_LOOKS_LIKE_NUMBER \ assert(sv) +#ifndef PERL_NO_INLINE_FUNCTIONS +PERL_STATIC_INLINE unsigned Perl_lsbit_pos32(U32 word) + __attribute__warn_unused_result__; +#define PERL_ARGS_ASSERT_LSBIT_POS32 +#endif + PERL_CALLCONV int Perl_magic_clear_all_env(pTHX_ SV* sv, MAGIC* mg); #define PERL_ARGS_ASSERT_MAGIC_CLEAR_ALL_ENV \ assert(sv); assert(mg) @@ -6712,6 +6718,12 @@ PERL_CALLCONV Signal_t Perl_sighandler(int sig, Siginfo_t *info, void *uap); #endif #if defined(U64TYPE) /* HAS_QUAD undefined outside of core */ #ifndef PERL_NO_INLINE_FUNCTIONS +PERL_STATIC_INLINE unsigned Perl_lsbit_pos64(U64 word) + __attribute__warn_unused_result__; +#define PERL_ARGS_ASSERT_LSBIT_POS64 +#endif + +#ifndef PERL_NO_INLINE_FUNCTIONS PERL_STATIC_INLINE unsigned Perl_single_1bit_pos64(U64 word) __attribute__warn_unused_result__; #define PERL_ARGS_ASSERT_SINGLE_1BIT_POS64 |