Parentheses in IF statements.

My question regards the following code.

Code:

---

       
while (--a >= 0)
        {
                f++;
                if (f >= g)
                        f = 0;
                h1 = 2;
                if (m)
                        h2 = 2;
        }

---

If the IF statement is false, is the following line, "f = 0," skipped? Are the next two lines skipped? or are the next four line skipped?

Could some one rewrite the code with Parentheses so that is more clear?

Code:

---



if (something something something)
Do everything up to the first semicolon ;  <- Only this line is executed in the if statement

//or

if (something something something)
{
do stuff;
as;
much;
as;
you;
want;
} //End of the if statement. If the if statement was true, it does everything upto this point

---

..

Code:

---

while (--a >= 0)
{
   
       
        f++;

        if (f >= g)
        {
                f = 0;

        }//End of if


        h1 = 2;//This is always ran in while loop, it is not in any if's

        if (m)
        {

        h2 = 2;

        }//End of 2nd if.

}//End of while-loop

---

When you don't use brackets around an if statement only the next statement is considered to be in it. There for if your if statement

Code:

---

if (f >= g)

---

was false, then f would not be set equal to zero, but everything after that would still happen, like h1 would be set to 2.

The indenting gives a clue about what belongs to the if statement and what doesn't:

Code:

---

while (--a >= 0)
{
        f++;
        if (f >= g)
                f = 0;
        h1 = 2;
        if (m)
                h2 = 2;
}

---

Here it is rewritten:

Code:

---

while (--a >= 0)
{
        f++;
        if (f >= g)
        {
                f = 0;
        }
        h1 = 2;
        if (m)
        {
                h2 = 2;
        }
}

---

Terminology: braces are {}, brackets are [] (unless further qualified) and parentheses are ().

Braces, that's the one I was looking for. ;)

... what a ball-buster. :p

Though, I've heard on many occasions braces called brackets and brackets called square-brackets.

...and how the hell do I post braces and brackets outside of code tags? I keep getting the "Format your code properly" error. There must be something I can uncheck or something.

Quote:

---

Originally Posted by SlyMaelstrom

...and how the hell do I post braces and brackets outside of code tags? I keep getting the "Format your code properly" error. There must be something I can uncheck or something.

---

I put a space after the bracket, such as [ size ] You should also scroll down the page and check the box "disable simleys in text".

I usually put an empty set of code tags in my post.

[code][/code]

Ah that's a good idea. Thanks.

Is there a way to implement syntax coloring within

Code:

---

dfsfdsdfsdf

---

, that would be great...

There are some tools that will generate BBcode markup for syntax highlighting code. You put the code there, transform it, and copy the result into the post.

There's also the build-in PHP syntax coloring, which you can access with the php tag, but it only really works for PHP, and doesn't highlight many of C++'s keywords.

If you use FireFox and grease monkey you can easily make it auto insert the color tags within the code tag for whatever you want.
http://greasemonkey.mozdev.org/