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From: john13@garfield.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: C-compilers for Amiga are Terrible (really Manx problem)
Message-ID: <3060@garfield.UUCP>
Date: Thu, 27-Nov-86 14:55:24 EST
Article-I.D.: garfield.3060
Posted: Thu Nov 27 14:55:24 1986
Date-Received: Fri, 28-Nov-86 11:47:08 EST
References: <8611191016.AA19776@cory.Berkeley.EDU> <1074@zen.BERKELEY.EDU> <1133@zen.BERKELEY.EDU> <9705@sun.uucp>
Sender: larry@garfield.UUCP
Reply-To: john13@garfield.UUCP (John Russell)
Distribution: net
Organization: Memorial U. of Nfld. C.S. Dept., St. John's
Lines: 34
Summary: floating point broken?

[]
One problem I haven't seen mentioned (although if it is known and there is a
way around it, I'd like to hear about it!):

Manx printf doesn't like %f!

main()
{ float x=1;
  printf("%f\n",x); }

causes an "f" to be printed when I run it through Manx. This problem cropped up
recently again, and I thought that it had happened before only when using 16 
bit ints; however, when I used "+l" and c32.lib, it still wouldn't work.

Now I do have programs written where it *does* work, scanf's and printf's with
%f's all over the place. But I remember having problems with them then too, and
having to use +l to get them to work (which was of no help the other night).

The last several times that this has happened to me, I've always been a bit
tight for memory (about 145K free before invoking compiler), but I can't see
why that should make a difference, and even if that is the reason, it's still
a pretty strange bug.

The Manx documentation had nothing to say about this, other than that it
supported full Kernighan & Richie, and that double precision variables take
up 64 bits although only 32 are used. Kernighan & Richie also says %e is an
alternate floating point specifier, but using that just changed the "f" to
an "e" when the program was run. I also tried various combinations of
double, "%lf", "%le", cc +l, ln -lc32, etc, without success. When using "%lf"
it would accept the "l", but still print the "f", not take it as a parameter.

Thanks for any help!

John