?RCS: $Id: floatsize.U 167 2013-05-08 17:58:00Z rmanfredi $ ?RCS: ?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi ?RCS: ?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: ?RCS: $Log: floatsize.U,v $ ?RCS: Revision 3.0.1.1 1994/10/29 16:17:09 ram ?RCS: patch36: added ?F: line for metalint file checking ?RCS: ?RCS: Revision 3.0 1993/08/18 12:08:09 ram ?RCS: Baseline for dist 3.0 netwide release. ?RCS: ?MAKE:floatsize: cat rm Myread +cc +ccflags ?MAKE: -pick add $@ %< ?S:floatsize: ?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. ?S:. ?C:FLOATSIZE: ?C: This symbol contains the size of a float, so that the C preprocessor ?C: can make decisions based on it. ?C:. ?H:#define FLOATSIZE $floatsize /**/ ?H:. ?F:!try : check for length of float echo " " case "$floatsize" in '') echo "Checking to see how big your floating point numbers are..." >&4 $cat >try.c <<'EOCP' #include int main() { printf("%d\n", sizeof(float)); } EOCP 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" ;; esac rp="What is the size of a floating point number (in bytes)?" . ./myread floatsize="$ans" $rm -f try.c try