[unix-history] / usr / lib / learn / C / L11.1a

#print
With your 'cc' command you can give the name of
an object file to be loaded with your program.
For example
   cc x.c y.o
will load the previously compiled program 'y' along with
the program 'x' to be compiled now.

The file "getnum.o" contains a subroutine "getnum" which
reads an integer and returns its value.
Write a program which reads a number and decides
whether or not it is a multiple of 23.  If so print
"yes" and otherwise print "no".
Compile and test; then type "ready".
#once #create Ref1
23000
#once #create Ref2
23001
#once cp %s/getnum.o .
#user
a.out <Ref1 >z1
a.out <Ref2 >z2
grep yes z1 >/dev/null || grep no z2 >/dev/null
#succeed
/*	One way: */

main() {
	if (getnum()%23 == 0)
		printf("yes\n");
	else
		printf("no\n");
}
#log
#next
12.1a 10
Commit	Line	Data
2e8921b7 C	1	#print
	2	With your 'cc' command you can give the name of
	3	an object file to be loaded with your program.
	4	For example
	5	cc x.c y.o
	6	will load the previously compiled program 'y' along with
	7	the program 'x' to be compiled now.
	8
	9	The file "getnum.o" contains a subroutine "getnum" which
	10	reads an integer and returns its value.
	11	Write a program which reads a number and decides
	12	whether or not it is a multiple of 23. If so print
	13	"yes" and otherwise print "no".
	14	Compile and test; then type "ready".
	15	#once #create Ref1
	16	23000
	17	#once #create Ref2
	18	23001
	19	#once cp %s/getnum.o .
	20	#user
	21	a.out <Ref1 >z1
	22	a.out <Ref2 >z2
	23	grep yes z1 >/dev/null \|\| grep no z2 >/dev/null
	24	#succeed
	25	/* One way: */
	26
	27	main() {
	28	if (getnum()%23 == 0)
	29	printf("yes\n");
	30	else
	31	printf("no\n");
	32	}
	33	#log
	34	#next
	35	12.1a 10