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Re: [gpsd-dev] ARM port problem in rtcm3.2 handling
From: |
Gary E. Miller |
Subject: |
Re: [gpsd-dev] ARM port problem in rtcm3.2 handling |
Date: |
Thu, 21 Apr 2016 11:04:06 -0700 |
Yo Hal!
On Thu, 21 Apr 2016 10:47:04 -0700
Hal Murray <address@hidden> wrote:
> address@hidden said:
> > Interesting. Been a while since I dug out the C99 standard. I had
> > assumed char was always signed, but C99 Section 6.2.5 15) clearly
> > sates a char may be either the same as signed char or as unsigned
> > char.
>
> > I had been thinking that since fiexed width type (uint88_t, etc.)
> > are in C99 we should use those instead. But I see in C99 7.1.1.1 3
> > that fixed width types are optional. I don't recall that ever
> > causing us trouble.
>
> So what do I do if I want a signed 8 bit int?
Use Intel? :-)
Or:
signed char C99 Section 6.2.5 1
int8_t C99 optional Section 7.8.1.1 1
> How would you have
> fixed this if the ARM was wrong?
Huh? Lost me? What hypothetical bug would I hypothetically be fixing?
If I was thought it wass something like a compiler bug I would just
mask it:
((unsigned int)(char 0x80)) & 0xff
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
address@hidden Tel:+1 541 382 8588
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- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, (continued)
Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Gary E. Miller, 2016/04/20
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Eric S. Raymond, 2016/04/20
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Paul Fertser, 2016/04/21
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Gary E. Miller, 2016/04/21
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Hal Murray, 2016/04/21
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling,
Gary E. Miller <=
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Eric S. Raymond, 2016/04/21
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Hal Murray, 2016/04/21
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Eric S. Raymond, 2016/04/21
Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Gary E. Miller, 2016/04/21