+= and -=

[itzjonno]

Can somebody give me a quick explanation on what they mean and how they work? Thanks!

PS I have looked around and cant find it!

[blackcoder41]

int number = 8;
number+=2;
number-=3;

is equal to

int number = 8;
number = number+2;
number = number-3;

[tummychow]

Compound assignment operator. As blackcoder noted,
x += y
is the same as
x = x + y

[mozly]

also note that

x += y      
x -= y                      
x *= y                    
x /= y 

is same as:

x = x + y
x = x - y
x = x * y
x = x / y

respectively.

[Bazzy]

There are also other: %= >>= <<= &= ^= |=
http://www.cplusplus.com/doc/tutorial/operators/

[R0mai]

You should have include

%=
<<=
>>=	
&=
^=
|=

too.

EDIT damn

[tummychow]

Exactly right. You can find *anything* to do with C++'s standard and language parts here on this website's references.
(I presume that the last five are bitwise?)

[R0mai]

(I presume that the last five are bitwise?)

Correct