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From: dueker@xenon.arc.nasa.gov (The Code Slinger)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: printf arrays in SAS/C
Summary: Linking with math libraries
Keywords: SAS/C lattice math libraries
Message-ID: <1991May13.202653.28201@nas.nasa.gov>
Date: 13 May 91 17:21:34 GMT
References: <1991May13.182159.19294@nntp-server.caltech.edu>
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In article <1991May13.182159.19294@nntp-server.caltech.edu>, rknop@nntp-server.caltech.edu (Robert Andrew Knop) writes...
>Now, I seem to have a different problem,
>and that is referencing arrays in printf.  Consider the following test
>program:
> 
>#include <stdio.h>
> 
>main()
>{  int i;
>   float junk[5];
>   
>   for (i=0;i<5;i++) junk[i]=(float)i+0.5;
>   for (i=0;i<5;i++) printf("junk[i]=%f\n",junk[i]);
>}
> 
>Compiled under UNIX, this program works exactly as I would expect it to.
>When I try to compile it on my Amiga with SAS/C 5.10, I get four very weird
>linker errors.  The linker tells me that I am trying to references undefined
>symbols.  These symbols are something like "_CVX45".  Am I forgetting
>to include some header file or some such?  What is going on here?  This has
>me quite befuddled.

Under SAS/C, when you mess with floats, ya gotta link with math libraries.
(The _CVX45 is a giveaway.  I've gotten that, too.)
The simplest way would be:
  lc -Lm test.c

This tells the linker to link with a <default?> math library.  There are
other math libraries available, too, with different sizes/formats.

Chris
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"Ah, Benson, you are so mercifully free of the ravages of intellegence!"
"Oh, thank you, Master!"             - from the movie, TIME BANDITS
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dueker@xenon.arc.nasa.gov        |   Chris Dueker (The Code Slinger)
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