[metaconfig.git] / U / compline / doublesize.U

?RCS: $Id: doublesize.U,v 3.0.1.1 1994/10/29 16:17:06 ram Exp $
?RCS:
?RCS: Copyright (c) 1991-1993, Raphael Manfredi
?RCS: 
?RCS: You may redistribute only under the terms of the Artistic Licence,
?RCS: as specified in the README file that comes with the distribution.
?RCS: You may reuse parts of this distribution only within the terms of
?RCS: that same Artistic Licence; a copy of which may be found at the root
?RCS: of the source tree for dist 3.0.
?RCS:
?RCS: $Log: doublesize.U,v $
?RCS: Revision 3.0.1.1  1994/10/29  16:17:06  ram
?RCS: patch36: added ?F: line for metalint file checking
?RCS:
?RCS: Revision 3.0  1993/08/18  12:08:06  ram
?RCS: Baseline for dist 3.0 netwide release.
?RCS:
?MAKE:doublesize: cat rm Myread Compile run
?MAKE:	-pick add $@ %<
?S:doublesize:
?S:	This variable contains the value of the DOUBLESIZE symbol, which
?S:	indicates to the C program how many bytes there are in a double.
?S:.
?C:DOUBLESIZE:
?C:	This symbol contains the size of a double, so that the C preprocessor
?C:	can make decisions based on it.
?C:.
?H:#define DOUBLESIZE $doublesize		/**/
?H:.
: check for length of double
echo " "
case "$doublesize" in
'')
	echo "Checking to see how big your double precision numbers are..." >&4
	$cat >try.c <<'EOCP'
#include <stdio.h>
int main()
{
    printf("%d\n", (int)sizeof(double));
    exit(0);
}
EOCP
	set try
	if eval $compile_ok; then
		doublesize=`$run ./try`
		echo "Your double is $doublesize bytes long."
	else
		dflt='8'
		echo "(I can't seem to compile the test program.  Guessing...)"
		rp="What is the size of a double precision number (in bytes)?"
		. ./myread
		doublesize="$ans"
	fi
	;;
esac
$rm -f try.c try
Commit	Line	Data
959f3c4c JH	1	?RCS: $Id: doublesize.U,v 3.0.1.1 1994/10/29 16:17:06 ram Exp $
	2	?RCS:
	3	?RCS: Copyright (c) 1991-1993, Raphael Manfredi
	4	?RCS:
	5	?RCS: You may redistribute only under the terms of the Artistic Licence,
	6	?RCS: as specified in the README file that comes with the distribution.
	7	?RCS: You may reuse parts of this distribution only within the terms of
	8	?RCS: that same Artistic Licence; a copy of which may be found at the root
	9	?RCS: of the source tree for dist 3.0.
	10	?RCS:
	11	?RCS: $Log: doublesize.U,v $
	12	?RCS: Revision 3.0.1.1 1994/10/29 16:17:06 ram
	13	?RCS: patch36: added ?F: line for metalint file checking
	14	?RCS:
	15	?RCS: Revision 3.0 1993/08/18 12:08:06 ram
	16	?RCS: Baseline for dist 3.0 netwide release.
	17	?RCS:
0f00356b	18	?MAKE:doublesize: cat rm Myread Compile run
959f3c4c JH	19	?MAKE: -pick add $@ %<
	20	?S:doublesize:
	21	?S: This variable contains the value of the DOUBLESIZE symbol, which
	22	?S: indicates to the C program how many bytes there are in a double.
	23	?S:.
	24	?C:DOUBLESIZE:
	25	?C: This symbol contains the size of a double, so that the C preprocessor
	26	?C: can make decisions based on it.
	27	?C:.
	28	?H:#define DOUBLESIZE $doublesize /**/
	29	?H:.
959f3c4c JH	30	: check for length of double
	31	echo " "
	32	case "$doublesize" in
	33	'')
0fdea05a	34	echo "Checking to see how big your double precision numbers are..." >&4
959f3c4c JH	35	$cat >try.c <<'EOCP'
	36	#include <stdio.h>
	37	int main()
	38	{
37a56d0d	39	printf("%d\n", (int)sizeof(double));
b8fb7a32	40	exit(0);
959f3c4c JH	41	}
	42	EOCP
	43	set try
	44	if eval $compile_ok; then
0f00356b	45	doublesize=`$run ./try`
0fdea05a	46	echo "Your double is $doublesize bytes long."
959f3c4c JH	47	else
	48	dflt='8'
	49	echo "(I can't seem to compile the test program. Guessing...)"
	50	rp="What is the size of a double precision number (in bytes)?"
	51	. ./myread
	52	doublesize="$ans"
	53	fi
	54	;;
	55	esac
	56	$rm -f try.c try
	57