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| Message-ID | <4F5CB0C8.2C88@mindspring.com> (permalink) |
|---|---|
| Date | 2012-03-11 09:03 -0500 |
| From | pete <pfiland@mindspring.com> |
| Organization | PF |
| Newsgroups | comp.lang.c |
| Subject | Re: Method to test a program against different C implementations |
| References | <jji27a$d4e$1@nnrp.ngi.it> <jji6up$68s$1@online.de> |
Joachim Schmitz wrote:
>
> pozz wrote:
> > We perfectly know that C implementations can be very different in
> > terms of:
> > - number of bits per byte
>
> #include <limits.h>
> and use CHAR_BIT
>
> > - number of bytes per int
>
> sizeof(int);
>
> > - number of bytes per long
>
> sizeof(long)
>
> > - signed or unsigned char
>
> #include <limits.h>
> and look at CHAR_BIT, CHAR_MAX and CHAR_MIN
>
> > - negative number implementation (two's or one's complement)
#include <stdio.h>
fputs("Negative numbers are ", stdout);
switch (-1 & 3) {
case 1: puts ("sign and magnitude.");
break;
case 2: puts ("one's complement.");
break;
case 3 : puts("two's complement.");
break;
default : puts("something strange.");
break;
}
> > - big or little endian or others
>
> http://c-faq.com/misc/endiantest.html
>
> <snip>
>
> Bye, Jojo
--
pete
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Method to test a program against different C implementations pozz <pozzugno@gmail.com> - 2012-03-11 12:27 +0100
Re: Method to test a program against different C implementations "Joachim Schmitz" <nospam.jojo@schmitz-digital.de> - 2012-03-11 13:48 +0100
Re: Method to test a program against different C implementations pete <pfiland@mindspring.com> - 2012-03-11 09:03 -0500
Re: Method to test a program against different C implementations James Kuyper <jameskuyper@verizon.net> - 2012-03-11 10:43 -0400
Re: Method to test a program against different C implementations Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-03-11 09:08 -0400
Re: Method to test a program against different C implementations pozz <pozzugno@gmail.com> - 2012-03-11 22:12 +0100
Re: Method to test a program against different C implementations Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-03-11 17:44 -0400
Re: Method to test a program against different C implementations Don Y <this@isnotme.com> - 2012-03-11 09:39 -0700
Re: Method to test a program against different C implementations Jorgen Grahn <grahn+nntp@snipabacken.se> - 2012-03-15 22:09 +0000
Re: Method to test a program against different C implementations James Kuyper <jameskuyper@verizon.net> - 2012-03-15 18:32 -0400
Re: Method to test a program against different C implementations pozz <pozzugno@gmail.com> - 2012-03-17 16:26 +0100
Re: Method to test a program against different C implementations James Kuyper <jameskuyper@verizon.net> - 2012-03-17 11:52 -0400
Re: Method to test a program against different C implementations Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-03-15 20:31 -0400
Re: Method to test a program against different C implementations Jorgen Grahn <grahn+nntp@snipabacken.se> - 2012-03-20 22:18 +0000
Re: Method to test a program against different C implementations Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-03-20 22:38 -0400
Re: Method to test a program against different C implementations Jorgen Grahn <grahn+nntp@snipabacken.se> - 2012-03-22 21:48 +0000
Re: Method to test a program against different C implementations James Kuyper <jameskuyper@verizon.net> - 2012-03-22 18:39 -0400
Re: Method to test a program against different C implementations Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-03-22 21:07 -0400
Re: Method to test a program against different C implementations Robert Miles <robertmilesxyz@gmail.com> - 2012-03-15 17:41 -0700
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