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dups.c
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C/C++ Source or Header
|
1996-09-28
|
857b
|
63 lines
/*
* Quick and dirty program to select adjacent records that are common
* in the first <arg> character positions.
*
*/
#include <stdio.h>
#define MAXSIZE 512
char ping[MAXSIZE];
char pong[MAXSIZE];
int flipflop = 0;
int size = MAXSIZE-1;
main (argc, argv)
int argc;
char *argv[];
{
register int index;
char *newbuf();
if (argc == 2)
{
size = atoi (argv[1]);
}
while (newbuf() != NULL)
{
for (index=0; index < size; index++)
{
if (ping[index] != pong[index])
{
break;
}
}
if (index == size)
{
printf ("%s\n", ping);
printf ("%s\n", pong);
}
}
return (0);
}
char *
newbuf ()
{
char *bufp;
if (flipflop)
{
bufp = ping;
flipflop = 0;
}
else
{
bufp = pong;
flipflop = 1;
}
return (gets (bufp));
}