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Groups > comp.sys.acorn.programmer > #866

Re: Setting & Clearing flags and C/C++ operators...

From Chris Johnson <chrisjohnson+news@spamcop.net>
Subject Re: Setting & Clearing flags and C/C++ operators...
Newsgroups comp.sys.acorn.programmer
Date 2011-10-10 14:40 +0100
Message-ID <522001746echrisjohnson+news@spamcop.net> (permalink)
References <522000e1e6chrisjohnson+news@spamcop.net>
Organization None

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To follow on.

To set a flag one would use (e.g. bit 3 is the flag)

flags | %001000 where | is the bitwise OR

To clear a flag

flags & ~%001000 where & is the bitwise AND and ~ is the bitwise
negate

-- 
Chris Johnson

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Thread

Setting & Clearing flags and C/C++ operators... Gazza <usenet@garethlock.com> - 2011-10-10 04:58 -0700
  Re: Setting & Clearing flags and C/C++ operators... Chris Johnson <chrisjohnson+news@spamcop.net> - 2011-10-10 14:34 +0100
    Re: Setting & Clearing flags and C/C++ operators... Chris Johnson <chrisjohnson+news@spamcop.net> - 2011-10-10 14:40 +0100

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