Deleting spaces in a string

Hi,
I want to write a code which takes an array of 20 characters and deletes all spaces between characters, it should leave only letters. For example:
input :a b c d e
I want to make it : abcde

I wrote this code, but it didn't change anything:

Code:

---

#include <stdio.h>

 int main ()
 {
        int i;
        char a[21];



        gets(a);

        for(i = 0; i < 20; i++)
        {
                if(a[i] == 8 || a[i] == 9)
                {a[i]= a[i+1];
                i--;}
                else continue;
        }

        printf("%s", a);
        printf("\n");

        return 0;
 }

---

Can you help me with that? Thanks...

your searching if a[i]==8 or 9 whish is back space or horiztal tab then you making i+1 to that a and minunsing i after that ii dunno why your doing that anyways ?
why dont you try copy anything inside the string thats not space
if(a[i]!=' '){continue your function here}?

Code:

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if(a[i] == 8 || a[i] == 9) /* what is this statement supposed to do??? */

---

to catch if the character is a space or not (backspace and horizontal tab)

' ' == 32

The other complication is that "i--" is not sufficient to compress the string.

Then use the character constant instead of its decimal value which depends on the underlying character set.

Don't do this
String Question - C

Here's why
How To Ask Questions The Smart Way

Quote:

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Originally Posted by Salem

Don't do this

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Salem is being mean! There is nothing wrong with the OP. The one and only reply on Daniweb starts out with a completely moronic and incorrect analysis:

Quote:

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You can't compile this code, that's why it didn't change anything: the else alternative has no correspondent if! Didn't you see it?

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What? I see an if and an else. I'd go somewhere "else" and ask again too.

Chill out bahada.

I solved this problem in another way thanks, and I asked at first at daniweb but i couldn't get the answer for hours, then I asked here..

function for deleting any character

> but i couldn't get the answer for hours, then I asked here
Oh, but there are answers there.
So now you're claiming it's urgent
Don't go round spamming multiple forums in the mistaken belief that you're entitled to a 24/7 service wherever you go.

Quote:

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Originally Posted by Salem

Don't go round spamming multiple forums in the mistaken belief that you're entitled to a 24/7 service wherever you go.

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That is not spamming, and you are not obliged to answer questions...I think.