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The ideas behind the MSC port are stolen from Emacs. * lib/count-one-bits.c (popcount_support) [_MSC_VER]: New variable. * lib/count-one-bits.h: Include limits.h, for CHAR_BIT. Don't include verify.h: it's no longer needed, as types wider than 64 bits are now supported. (COUNT_ONE_BITS_GENERIC): New macro. (popcount_supported) [_MSC_VER]: New inline function. (COUNT_ONE_BITS): Use it. New arg MSC_BUILTIN, for better performance with MSC. All uses changed. Do not assume that TYPE has at most 64 bits. * modules/count-one-bits (Depends-on): Do not depend on 'verify'.
26 lines
299 B
Plaintext
26 lines
299 B
Plaintext
Description:
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Counts the number of 1-bits in a word.
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Files:
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lib/count-one-bits.c
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lib/count-one-bits.h
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m4/count-one-bits.m4
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Depends-on:
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extern-inline
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configure.ac:
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gl_COUNT_ONE_BITS
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Makefile.am:
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lib_SOURCES += count-one-bits.c
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Include:
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"count-one-bits.h"
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License:
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LGPLv2+
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Maintainer:
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Ben Pfaff
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