using for statements

[lurksalot]

Hi, I have a problem using "for" statements. I had to write the same program using the "while" statement a while ago and it works fine, but when I tried to do it using for, the number infinitely decreases.

Here is my statement using the while statement which works the way I want it to

#include <iostream>
int main()
{
    int val = 10;
    while (val>=0) {
        std::cout << val << std::endl;
        --val;
    }
    return 0;
}

Here is my for statement which infinitely decreases instead of the number going from 10 to 0.

#include <iostream>

int main()
{
    int val = 10;
    for (int val = 0; val <=10; --val)
    std:: cout << val << std::endl;
    --val;
    return 0;

}

I tried to fix it, but when I do it's like it doesn't read my code at all and tells me to press a key to exit.

[giblit]

You want it to go from 10 to 0 but look at your function.
You set it equal to 0 then decrease by 1 while it is less than or equal to 10.
Maybe you meant to set it equal to 0 and then decrease while it is >= 0?

for( initial_value; condition; modification );
^^^
for( int i = 10; i > -1; --i ) std::cout << i << std::endl;

Also you have a pointless --val on line 8. The for loop is going to automatically do that sinceyou have it doing that on line 6 and anyways you don't have braces so only line 7 are included in the for loop. if you did put braces that would be the same as

while( val > -1 )
{
    --val;
    std::cout << val << std::endl;
    --val; //not neccessay
}

*edit more info

http://en.wikipedia.org/wiki/For_loop

wikipedia wrote:

for (INITIALIZATION; CONDITION; AFTERTHOUGHT) {
// Code for the for loop's body
// goes here.
}

[lurksalot]

I tried to redo it and now it just tells me to press a key to exit after I run the program

#include <iostream>

int main()
{
    int val = 10;
    for (int val = 10; val >10; --val){
        std::cout << val << std::endl;
    }

    return 0;

}

[lurksalot]

Oh nvm, got it. I forgot to change the 10 to 0 on one of the parts.