Rockbox mail archiveSubject: Re: Question on Config block/user_settings
Re: Question on Config block/user_settings
From: c s <rb_dev_at_yahoo.com>
Date: Fri, 25 Apr 2003 01:30:44 -0700 (PDT)
--- Björn Stenberg <bjorn_at_haxx.se> wrote:
> c s wrote:
> > is the only requirement that
> > the value of a bool variable be zero OR non-zero
> > opposed to zero OR one).
> Yes. True and false is defined as !0 and 0. This is
> valid for all C code, not just boolean variables.
> > Is there an error
> > in the settings code or am I missing something?
> Looks good to me:
> Save - The caption boolean is converted to bit 1 of
> byte 0xAE:
> config_block[0xae] = (unsigned char)
> ((global_settings.fade_on_stop & 1) |
> ((global_settings.caption_backlight & 1) <<
> Load - Bit 1 of byte 0xAE is converted to the
> caption boolean:
> global_settings.caption_backlight =
> config_block[0xae] & 2;
OK, I didn't realize that you could code:
bool b = 2;
...with the result that b is equal to 1.
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Received on 2003-04-25