path: root/mcon/U/floatsize.U
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authorManoj Srivastava <>2008-05-30 12:42:47 -0700
committerManoj Srivastava <>2008-05-30 12:42:47 -0700
commitceb3507a8fca872770b3dcd7e5c5b36179ab95b0 (patch)
treeb46b4e25cfff5f4c13a330b8428ceed343e3796c /mcon/U/floatsize.U
Import dist_3.5-236.orig.tar.gz
[dgit import orig dist_3.5-236.orig.tar.gz]
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+?RCS: $Id$
+?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
+?RCS: You may redistribute only under the terms of the Artistic License,
+?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 License; a copy of which may be found at the root
+?RCS: of the source tree for dist 4.0.
+?RCS: $Log: floatsize.U,v $
+?RCS: Revision 1994/10/29 16:17:09 ram
+?RCS: patch36: added ?F: line for metalint file checking
+?RCS: Revision 3.0 1993/08/18 12:08:09 ram
+?RCS: Baseline for dist 3.0 netwide release.
+?MAKE:floatsize: cat rm Myread +cc +ccflags
+?MAKE: -pick add $@ %<
+?S: This variable contains the value of the FLOATSIZE symbol, which
+?S: indicates to the C program how many bytes there are in a float.
+?C: This symbol contains the size of a float, so that the C preprocessor
+?C: can make decisions based on it.
+?H:#define FLOATSIZE $floatsize /**/
+: check for length of float
+echo " "
+case "$floatsize" in
+ echo "Checking to see how big your floating point numbers are..." >&4
+ $cat >try.c <<'EOCP'
+#include <stdio.h>
+int main()
+ printf("%d\n", sizeof(float));
+ if $cc $ccflags -o try try.c >/dev/null 2>&1 ; then
+ dflt=`./try`
+ else
+ dflt='4'
+ echo "(I can't seem to compile the test program. Guessing...)"
+ fi
+ ;;
+ dflt="$floatsize"
+ ;;
+rp="What is the size of a floating point number (in bytes)?"
+. ./myread
+$rm -f try.c try