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Old 08-29-2005, 01:01 PM   #1
boxerboy
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Registered: Jul 2005
Distribution: ubuntu5.04, ubuntu5.10, suse9.3, mandrake10.1, mandriva2006(beta), FC1-4, redhat9.0, debian sarge
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C code fflush/fpurge/getchar problems


ok heres the source code for the greater.c program i took getchar() out and put fflush(stdin); and it didnt work than i put fpurge(stdin); and this is what im getting. in the first place with getchar() it was seeing the enter key as a choice. so i did ctrl d and it worked fine than replaced getchar with the other 2 that i said and fflush doesnt do anything the fpurge gives me that error at bottom.


Code:
#include <stdio.h>

int main()
{
	char a,b;

	printf("Which character is greater?\n");
	printf("Type a single character:");
	a=getchar();
	fpurge(stdin);
	printf("Type another character:");
	b=getchar();

	if(a>b)
	{
	printf("'%c' is greater than '%c'!\n",a,b);
	}
	else if (b>a)
	{
	printf("'%c' is greater than '%c'!\n",b,a);
	}
	else
	{
	printf("Next time, dont type the same character twice.");
	}
	return(0);
}
Code:
[boxerboy@localhost ~]$ gcc greater.c -o greater
/tmp/cceNCLIV.o(.text+0x4e): In function `main':
greater.c: undefined reference to `fpurge'
collect2: ld returned 1 exit status
is there something im not seeing?
 
Old 08-29-2005, 01:13 PM   #2
Nylex
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Registered: Jul 2003
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Edit again: I found one site that says to try "__fpurge()" (see section 2.2.0 of this).

Last edited by Nylex; 08-29-2005 at 01:21 PM.
 
Old 08-29-2005, 01:46 PM   #3
boxerboy
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Registered: Jul 2005
Distribution: ubuntu5.04, ubuntu5.10, suse9.3, mandrake10.1, mandriva2006(beta), FC1-4, redhat9.0, debian sarge
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Original Poster
Rep: Reputation: 32
thank you it worked great i was all over the dummies site and didnt see it never thought to look for an unofficail site thanks again
 
  


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