Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.arch.embedded > #24988
| From | Don Y <blockedofcourse@foo.invalid> |
|---|---|
| Newsgroups | comp.arch.embedded |
| Subject | Re: XC8 novice question |
| Date | 2016-09-11 02:55 -0700 |
| Organization | A noiseless patient Spider |
| Message-ID | <nr39lt$dr5$1@dont-email.me> (permalink) |
| References | <wbGdnWYUU7sHnEjKnZ2dnUU7-KvNnZ2d@westnet.com.au> |
On 9/11/2016 12:02 AM, rwood wrote: > Novice question using MPLABx + XC8 > > If i define my_variable using; > > #define my_variable 0b10000000 > > And then I use it in a function that expects a 'char'; > > void my_function(char i); > > > > I get a compiler warning; > > warning: (752) conversion to shorter data type > > By changing the function prototype to expect an 'int' the warning goes away so > I think the defined my_variable is being assigned as an 'int' > > So my question is how or can I structure my define so the defined my_variable > is assigned as a 'char'.. > > I cannot see anything useful in the mplabx documentation. Why not explicitly cast the value to a "char" in the define-ition (*if* you expect to always use it as such)? Note that you should decide if you do/don't care about signedness of the value (i.e., is this value 128 or -127?) as "char" can vary from implementation to implementation.
Back to comp.arch.embedded | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
XC8 novice question rwood <rwoodl@nowhere.com> - 2016-09-11 15:02 +0800
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-11 02:55 -0700
Re: XC8 novice question rwood <rwoodl@nowhere.com> - 2016-09-11 18:25 +0800
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-11 13:35 +0200
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-11 07:32 -0700
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-11 16:58 +0200
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-11 13:15 -0700
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-12 08:55 +0200
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-12 02:41 -0700
Re: XC8 novice question Mike Perkins <spam@spam.com> - 2016-09-12 13:16 +0100
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-12 14:56 +0200
Re: XC8 novice question Mike Perkins <spam@spam.com> - 2016-09-12 14:33 +0100
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-12 16:11 +0200
Re: XC8 novice question Jack <jack4747@gmail.com> - 2016-09-12 07:50 -0700
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-12 22:23 +0200
Re: XC8 novice question Les Cargill <lcargill99@comcast.com> - 2016-09-12 15:34 -0500
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-12 08:44 -0700
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-12 14:35 +0200
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-12 08:19 -0700
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-12 23:11 +0200
Re: XC8 novice question Dennis <dennis@none.none> - 2016-09-12 17:04 -0500
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-12 22:49 -0700
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-13 09:04 +0200
Re: XC8 novice question Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2016-09-13 00:16 +0200
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-12 21:22 -0700
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-13 12:25 +0200
Re: XC8 novice question Dennis <dennis@none.none> - 2016-09-13 10:22 -0500
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-13 20:08 +0200
Re: XC8 novice question rwood <rwoodl@nowhere.com> - 2016-09-12 16:50 +0800
Re: XC8 novice question Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-09-11 17:13 +0100
Re: XC8 novice question Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-09-11 17:19 +0100
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-12 09:00 +0200
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-11 07:28 -0700
Re: XC8 novice question upsidedown@downunder.com - 2016-09-11 13:56 +0300
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-11 13:28 +0200
Re: XC8 novice question Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2016-09-11 13:36 +0200
Re: XC8 novice question upsidedown@downunder.com - 2016-09-11 16:14 +0300
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-11 07:57 -0700
Re: XC8 novice question Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2016-09-12 22:52 +0200
Re: XC8 novice question upsidedown@downunder.com - 2016-09-13 10:11 +0300
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-13 01:11 -0700
Re: XC8 novice question upsidedown@downunder.com - 2016-09-13 13:24 +0300
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-13 12:39 +0200
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-13 15:41 -0700
Re: XC8 novice question upsidedown@downunder.com - 2016-09-14 09:07 +0300
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-13 23:29 -0700
Re: XC8 novice question Don Y <blockedofcourse@foo.invalid> - 2016-09-11 07:50 -0700
Re: XC8 novice question Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2016-09-11 13:42 +0200
Re: XC8 novice question Tim Wescott <tim@seemywebsite.com> - 2016-09-11 20:14 -0500
Re: XC8 novice question rwood <rwoodl@nowhere.com> - 2016-09-12 16:54 +0800
Re: XC8 novice question David Brown <david.brown@hesbynett.no> - 2016-09-12 11:05 +0200
Re: XC8 novice question rwood <rwoodl@nowhere.com> - 2016-09-12 18:48 +0800
Re: XC8 novice question John Temples <usenet@xargs-spam.com> - 2016-09-12 17:33 +0000
csiph-web