[unix-history] / usr / lib / learn / C / L15.1b

#print
Write a program that reads in lines, and prints each out
in reverse order (except that the newline should be
at the end).
Thus the line
cat food
should come out as
doof tac
Compile it and run it, then type "ready".
#once #create Ref1
This is odd.
This is even.

#once #create Ref2
.ddo si sihT
.neve si sihT

#once cp %s/getline.o .
#user
a.out <Ref1 >x1
#cmp x1 Ref2
#succeed
/*	one way to do this */
 \b#include <stdio.h>

main()
{
	char line[500];
	int n;

	while ((n = getline(line, 500)) > 0) {
		for (n -= 2; n >= 0; n--)
			putchar(line[n]);
		putchar('\n');
	}
}
#log
#next
17.1a 10
16.2a 5
Commit	Line	Data
cb8c26cc TL	1	#print
	2	Write a program that reads in lines, and prints each out
	3	in reverse order (except that the newline should be
	4	at the end).
	5	Thus the line
	6	cat food
	7	should come out as
	8	doof tac
	9	Compile it and run it, then type "ready".
	10	#once #create Ref1
	11	This is odd.
	12	This is even.
	13
	14	#once #create Ref2
	15	.ddo si sihT
	16	.neve si sihT
	17
	18	#once cp %s/getline.o .
	19	#user
	20	a.out <Ref1 >x1
	21	#cmp x1 Ref2
	22	#succeed
	23	/* one way to do this */
	24	\b#include <stdio.h>
	25
	26	main()
	27	{
	28	char line[500];
	29	int n;
	30
	31	while ((n = getline(line, 500)) > 0) {
	32	for (n -= 2; n >= 0; n--)
	33	putchar(line[n]);
	34	putchar('\n');
	35	}
	36	}
	37	#log
	38	#next
	39	17.1a 10
	40	16.2a 5