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Re: word size and gcc builtins usage

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On 05/20/11 08:12 AM, dr.oktopus wrote:
> Hello,
> simple question: what is the most appropriate type for implement a bit
> array type for
> operations like anding, oring, etc..
> simple answer: well, it should be the word size of the microprocessor
> you are using.
> More exactly, it should be the largest word the os allow you. So, if
> you are running
> x86 linux on a 64-bit microprocessor, it is 32 bit. But how detect it?

Why 32 bit?  unsigned long is 64 bit on that platform.

Using size_t probably meets your requirements.

-- 
Ian Collins

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word size and gcc builtins usage "dr.oktopus" <blindwilly@freeonline.zzn.com> - 2011-05-19 13:12 -0700
  Re: word size and gcc builtins usage Ian Collins <ian-news@hotmail.com> - 2011-05-20 08:24 +1200
    Re: word size and gcc builtins usage Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-05-22 13:06 +0000
  Re: word size and gcc builtins usage "Joel C. Salomon" <joelcsalomon@gmail.com> - 2011-05-19 14:21 -0700
    Re: word size and gcc builtins usage "robertwessel2@yahoo.com" <robertwessel2@yahoo.com> - 2011-05-19 18:13 -0700
  Re: word size and gcc builtins usage Seebs <usenet-nospam@seebs.net> - 2011-05-19 22:06 +0000
    Re: word size and gcc builtins usage Keith Thompson <kst-u@mib.org> - 2011-05-19 15:52 -0700
      Re: word size and gcc builtins usage Seebs <usenet-nospam@seebs.net> - 2011-05-19 23:38 +0000
  Re: word size and gcc builtins usage Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-05-19 22:30 -0400
    Re: word size and gcc builtins usage "dr.oktopus" <blindwilly@freeonline.zzn.com> - 2011-05-19 22:31 -0700

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