[TUHS] compiling festoon

[TUHS] compiling festoon

[Norman Wilson]

Since the problem is a new library function that appeared in
the official header files in C99, it makes sense that newer
versions of gcc object.  That means that as time goes by, newer
C compilers everywhere will probably pick up the change.  Any
documentation stored next to festoon.c should definitely point
out the problem and its full generality.

We'll leave aside for now the question of whether complex
conjugation really ought to be public.

Norman Wilson
Toronto ON

[TUHS] compiling festoon

[Warren Toomey]

In article by Norman Wilson:
> We'll leave aside for now the question of whether complex
> conjugation really ought to be public.

I guess as long as the numbers are consenting, it's fine.
Maybe we need a ``don't ask, don't tell'' policy on complex conjugation.

Sorry, it's 11pm here.

	Warren

[TUHS] compiling festoon

[Aharon Robbins]

DMR remarked:
> So far as I can tell from ISO/IEC 9899:1999,
> the panoply of Complex macros and functions
> are supposed to be enabled only after
>
>  #include <complex.h>
>
> gcc looks to be overenthusiastic.
>
> 	Dennis

I would agree. I plan to file a bug report about it. I built and
checked the latest gcc, and even this file generates the
complaint:

	#include <stdio.h>

	int conj(a)
	int a;
	{
		return a;
	}

	main()
	{
		printf("%d\n", conj(1));
	}

Sigh.

Arnold

[TUHS] compiling festoon

[Dennis Ritchie]

Norman observed (about conj):

 > Since the problem is a new library function that appeared in
 > the official header files in C99, it makes sense that newer
 > versions of gcc object.  That means that as time goes by, newer
 > C compilers everywhere will probably pick up the change.  Any
 > documentation stored next to festoon.c should definitely point
 > out the problem and its full generality.

 > We'll leave aside for now the question of whether complex
 > conjugation really ought to be public.

So far as I can tell from ISO/IEC 9899:1999,
the panoply of Complex macros and functions
are supposed to be enabled only after

 #include <complex.h>

gcc looks to be overenthusiastic.

	Dennis

[TUHS] compiling festoon

[Tim Bradshaw]

* Warren Toomey wrote:

> Um, it compiles fine for me on FreeBSD using gcc version 2.95.3,
> so I'd say that it's a Linux library. I'll put your suggestion
> into the README.

I think it may be a gcc 2 / 3 change.  gcc 3.2 on Solaris has a
similar complaint.

--tim

[TUHS] compiling festoon

[Peter Jeremy]

On Thu, Feb 27, 2003 at 02:06:17PM +0200, Aharon Robbins wrote:
>The following diff is necessary to use GCC on a linux system.
>(Anyone know what gcc's builtin `conj' function is? Beats me.)

Probably complex conjugate:  conj(a+ib) == a-ib

Peter

[TUHS] compiling festoon

[Warren Toomey]

In article by Aharon Robbins:
> Hi All.
> 
> The following diff is necessary to use GCC on a linux system.
> (Anyone know what gcc's builtin `conj' function is? Beats me.)
> 
> Warren, you might want to fix that last line in the archive version
> of the file.

Um, it compiles fine for me on FreeBSD using gcc version 2.95.3,
so I'd say that it's a Linux library. I'll put your suggestion
into the README.

	Warren

[TUHS] compiling festoon

[Lars Brinkhoff]

Aharon Robbins <arnold at skeeve.com> writes:
> Anyone know what gcc's builtin `conj' function is?

C99 complex conjugation.

-- 
Lars Brinkhoff,         Services for Unix, Linux, GCC, PDP-10, HTTP
Brinkhoff Consulting    http://www.brinkhoff.se/

[TUHS] compiling festoon

[Aharon Robbins]

Hi All.

The following diff is necessary to use GCC on a linux system.
(Anyone know what gcc's builtin `conj' function is? Beats me.)

Warren, you might want to fix that last line in the archive version
of the file.

Arnold
----------------
*** fest.c.dist	Wed Feb 26 23:51:49 2003
--- fest.c	Thu Feb 27 14:02:55 2003
***************
*** 1223,1229 ****
  static char    *conjlist[] = {"and", "but", "yet", "and", "and"};
  
  X 
! conj(env)
  	E               env;
  {
  	X               v = getxx();
--- 1223,1229 ----
  static char    *conjlist[] = {"and", "but", "yet", "and", "and"};
  
  X 
! conjugate(env)
  	E               env;
  {
  	X               v = getxx();
***************
*** 1306,1312 ****
  	} else if (prob(2 * T)) {
  		v->list.x[i++] = turgid(env);
  		v->list.x[i++] = comma(env);
! 		v->list.x[i++] = conj(env);
  		v->list.x[i++] = sent(env);
  	} else if (prob(1.5 * T)) {
  		v->list.x[i++] = lconjsub(env);
--- 1306,1312 ----
  	} else if (prob(2 * T)) {
  		v->list.x[i++] = turgid(env);
  		v->list.x[i++] = comma(env);
! 		v->list.x[i++] = conjugate(env);
  		v->list.x[i++] = sent(env);
  	} else if (prob(1.5 * T)) {
  		v->list.x[i++] = lconjsub(env);
***************
*** 1327,1333 ****
  		if (eqn && prob(.5)) {
  			v->list.x[i++] = equation(env);
  			v->list.x[i++] = comma(env);
! 			v->list.x[i++] = conj(env);
  		}
  		v->list.x[i++] = sent(env);
  	} else
--- 1327,1333 ----
  		if (eqn && prob(.5)) {
  			v->list.x[i++] = equation(env);
  			v->list.x[i++] = comma(env);
! 			v->list.x[i++] = conjugate(env);
  		}
  		v->list.x[i++] = sent(env);
  	} else
***************
*** 1644,1647 ****
  	label[j++] = '"'; label[j] = '\0';
  	return(label);
  }
- /GO.SYSIN DD fest.c
\ No newline at end of file
--- 1644,1646 ----