pointer and function arguments

[tan007]

#include<stdio.h>
#include<ctype.h>
int getch(void);
void ungetch(int);
int getline(int *);

int main()
{
	int i;
	printf("%d\n",getline(&i));
	return 0;
}

int getline(int *pn)
{
	int c,sign;

	while(isspace(c=getch()))
		;
	if(!isdigit(c) && c!=EOF && c!='+' && c!='-')
	{
		ungetch(c);
		return 0;
	}
	sign=(c=='-') ? -1:1;
	if(c== '+' || c=='-')
		c=getch();
	for(*pn =0;isdigit(c);c=getch())
		*pn=10 * *pn +(c- '0');
	*pn *=sign;
	if(c !=EOF)
		ungetch(c);
	return c;
}
#define BUFSIZE 100
char buf[BUFSIZE];
int bufp=0;

int getch(void)
{
	return (bufp >0) ? buf[--bufp] :getchar();
}
void ungetch(int c)
{
	if(bufp >=BUFSIZE)
		printf("ungetch:too many characters\n");
	else
		buf[bufp++]=c;
}

guys getint function performs free-format input conversion by breaking stream of characters into integer values,one integer per call.....but m always getting the output as 10....for all the inputs...cal u help..

[weaknessforcats]

the 10 is your enter key.

getines needs an array and not just a single int.