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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 08:23:43 -0700 |
Yo Paul!
On Thu, 21 Apr 2016 11:18:02 +0300
Paul Fertser <address@hidden> wrote:
> For the reference, in your other email you correctly state that both
> of those systems are little-endian.
Yup, I just got tired of typing it correctly. :-)
> I think the RTCM issues you were facing are due to the char being
> signed by default on x86 and amd64 but unsigned on arm.
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.
Luckily short int, int, long int,and long long int are always
signed. C99 Section 6.2.5 4).
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.
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 <=
- 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, 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, 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