Originally Posted by
fortune2k
....its rather hard im using pelles C to write and run it is this a good IDE to use?
I've never used it -- I prefer Dev-C++ or Code::Blocks -- but I've heard good things about it.
You could have a look at some tutorials. http://www.cprogramming.com/tutorial/c/lesson10.html
And here's a simple program that might demonstrate what we're talking about . . .
Code:
$ ./fortune2k
Enter some numbers: 2 3 4 k 5
2
3
4
Error parsing number at " k 5"
$ cat ./fortune2k.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main() {
char buffer[BUFSIZ], *start, *end, *p;
long n;
printf("Enter some numbers: ");
if(!fgets(buffer, sizeof(buffer), stdin)) {
/* EOF or another error was encountered */
perror("stdin");
return 1;
}
/* remove the (possible) newline from buffer */
if((p = strchr(buffer, '\n'))) *p = 0;
start = buffer;
do {
n = strtol(start, &end, 0);
if(start == end || !end) {
printf("Error parsing number at \"%s\"\n", start);
break;
}
printf("%ld\n", n);
start = end;
} while(*end);
return 0;
}
$
Okay, so that was somewhat longer than it needed to be. 
Look into fscanf(). It should be good enough for your purposes.
(Actually, that wasn't fair; MSVC 6 does, and that's the only version I really used. I hear later versions are better.)
MSVC can't create code that is very portable. Executables are by their very nature not very portable. But at least GCC can compile the same code under Windows and Linux.
) that can run GCC, the mingw or the cygwin ports.