Date: Wed, 11 Dec 1996 13:36:27 GMT
From: kvhk AT ivs4 DOT barco DOT com (Koen Van Herck)
Message-Id: <9612111336.AA09140@ivs4.>
To: jesusfreak44 AT juno DOT com
Cc: djgpp AT delorie DOT com
In-Reply-To: <19961209.194348.6911.2.jesusfreak44@juno.com>
Subject: reading strings
Reply-To: Koen DOT VanHerck AT barco DOT com

I have fixed up the program. The problem was that scanf stops reading
a string when it sees a space. So you can't enter a name with a space
in it.

I have made a function, `getstring', which reads a string from stdin. 
I tried to make it fail-safe, i.e., EOF and long input lines are
handled correctly.
Just have a look.

---begin program---
#include <stdio.h>

struct entry {
	char fname[20];
	char lname[20];
	char phone[10];
	};
struct entry list[4];
int i;

/* Read a string from stdin */
/* Return 0 on error, buffer on success */
char *getstring(char *buf, int maxlen)
{
   char c, *end;
   
   if (!fgets(buf, maxlen, stdin))
      return 0;			/* return 0 on error */

   end = buf+strlen(buf)-1;	/* pointer to last character */
   if (*end == '\n')
   {
      *end = '\0';		/* replace newline with NULL */
   } else {			/* skip rest of input line */
      while ((c = getc(stdin)) != EOF && c != '\n'); 
   }

   return buf;
}


int main()
{
   for (i=0; i<4; i++)
   {
      printf("\nEnter first name: ");
      getstring(list[i].fname, 20);
      printf("Enter last name: ");
      getstring(list[i].lname, 20);
      printf("Enter phone in XXX-XXXX format: ");
      getstring(list[i].phone, 10);
   }
   printf("\n\n");
   for (i=0;i<4;i++)
   {
      printf("Name: %s %s",list[i].fname,list[i].lname);
      printf("\tPhone: %s\n", list[i].phone);
   }
   
   return 0;
}






----
Koen Van Herck
Electronic Design Engineer
E-mail: Koen DOT VanHerck AT barco DOT com

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