#147629 - mog123 - Mon Dec 24, 2007 10:49 pm
I learned C a bit and want to make a very simple function, the thing is I don't know how to loop it back(just like in assembly you could just use something like JMP START)
So my main idea is this:
NAME ENTRY
if name is less than or even 15 characters printf: name accepted
if name is over 15 characters printf: name too long, print again
I know how to do it till that part, but writing functions is somewhat complicated for me and after assembly i just can't understand it, how do I go back to NAME ENTRY?
#147631 - tepples - Mon Dec 24, 2007 11:39 pm
To make a JMP START, wrap the program in a while loop.
_________________
-- Where is he?
-- Who?
-- You know, the human.
-- I think he moved to Tilwick.
#147633 - mog123 - Mon Dec 24, 2007 11:55 pm
so like:
main()
..
..
..
if..
else while(main)
?
#147636 - tepples - Tue Dec 25, 2007 12:23 am
| Code: |
int main(void) {
while (1) {
/* do stuff */
}
}
|
_________________
-- Where is he?
-- Who?
-- You know, the human.
-- I think he moved to Tilwick.
#147638 - mog123 - Tue Dec 25, 2007 12:54 am
I can't seem to do it:
here's my program:
| Code: |
#include <stdio.h>
#include <string.h>
int main(void)
{
while(1)
{
printf("Please type in your name\n");
char name[]=scanf();
char len[10];
if(strcmp(len,name)>0 || strcmp(len,name)=0)
{
printf("name accepted\n");
return 0;
}
else
{
printf("name too long\n");
return 1;
}
}
} |
I get an error from the compiler saying:
name.c:9: '{' expected
Where should i put that damn bracket?
#147640 - Dwedit - Tue Dec 25, 2007 1:17 am
You can not assign directly to a char array.
The compiler thinks you want to define the array like
char foo [] = {1,4,2,6,7,4,7,2,4,5,7,5};
so it's asking for a {
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#147641 - mog123 - Tue Dec 25, 2007 1:39 am
Do you have any solution? I can't think of anything right now(too tired).
#147642 - Dwedit - Tue Dec 25, 2007 3:12 am
| Code: |
#include <stdio.h>
#include <string.h>
int main(void)
{
printf("Please type in your name\n");
char name[12];
int name_accepted=0;
while (name_accepted==0)
{
scanf("%11s",name);
int length=strlen(name);
//we specify 11, so it will affect up to 12 characters
if (length>10)
{
printf("name too long\n");
}
else
{
name_accepted=1;
printf("hello %s\n",name);
}
}
return 0;
}
|
_________________
"We are merely sprites that dance at the beck and call of our button pressing overlord."
#147650 - mog123 - Tue Dec 25, 2007 12:06 pm
Thanks, I think I finally understand :)