Check Out This Awesome C++ Lesson

Beem · 2012-11-24T19:51:30

I taught my friend C++ over Steam chat, here's how it went.. Enjoy. 5:37 PM - Jack: Also you need to put semicolons all over the place. 5:37 PM - Jack: There's not much ryhme or reason as to where you put them, but trsut me, you need them. 5:39 PM - Scamster: 5:40 PM - Jack: Whenever some comes to me and says their game is broekn, I tell them it's probably a semicolon, and it almost always is. 5:40 PM - Jack: No why I say there is no rhym or reason is because... 5:40 PM - Jack: class SomeClas { }; <= needs semicolon 5:40 PM - Jack: but 5:41 PM - Jack: namespace SomeNamesapce {} <= doesn't ened semicolon. 5:41 PM - Jack: And... 5:41 PM - Jack: switch(somevalue){} <= doesn't need semicolon. 5:41 PM - Jack: but. 5:41 PM - Jack: enum SOMENUM{}; <= needs semicolon. 5:41 PM - Jack: Also 5:41 PM - Jack: for(int i=0; i<3; i++){} <= has semicolons in weird places, but doesn't need one at the end. 5:42 PM - Jack: What's alright though is if you add a semicolon where you don't need one, in many cases it's okay. 5:42 PM - Jack: not the namespace one thugh.

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Started by Beem November 19, 2012 01:45 AM

23 comments, last by slicer4ever 11 years, 5 months ago

ApochPiQ

23,138

November 24, 2012 07:38 AM

There's perfect reason to the semicolon rules in C/C++.

You need a semicolon after a } any time you are working with something that can be instantiated. Otherwise, you don't.

This is to support the following syntax:

struct Foo

{

     int member;

} InstanceOfFoo;



InstanceOfFoo.member = 42;

Can you instantiate structs? Check. Classes? Check. Enums? Check. Namespaces? Nope! Therefore, namespace does not need a trailing semicolon. (For that matter, functions and the bodies of code blocks follow the same pattern.)

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Icebone1000

1,960

November 24, 2012 05:08 PM

There's perfect reason to the semicolon rules in C/C++.

You need a semicolon after a } any time you are working with something that can be instantiated. Otherwise, you don't.

This is to support the following syntax:

struct Foo { int member; } InstanceOfFoo; InstanceOfFoo.member = 42;

Can you instantiate structs? Check. Classes? Check. Enums? Check. Namespaces? Nope! Therefore, namespace does not need a trailing semicolon. (For that matter, functions and the bodies of code blocks follow the same pattern.)

tell that do/while loop
;D

-edit-
I see now the "after }" you mentioned..
anyway I found a discussion on the do while semicolon:
http://stackoverflow.com/questions/942251/in-c-c-why-does-the-do-whileexpression-need-a-semi-colon

Dynamo_Maestro

770

November 24, 2012 06:33 PM

The 'Banned' status is very misleading with the strike-through, I thought it meant he was unbanned from a previous ban

Servant of the Lord

33,739

November 24, 2012 07:25 PM

[s]Red name without strikethrough is reserved for moderator names.[/s] [Edit:] Whoops, that was a previous version of the site. Ignore that.

Cornstalks

7,033

November 24, 2012 07:39 PM

The 'Banned' status is very misleading with the strike-through, I thought it meant he was unbanned from a previous ban

Heh, yeah, I'd vote for a strikethrough name (normal color) with red Banned tag (no strikethrough).

As for menacing avatars, I almost changed my avatar one of the frames from this to illustrate how I was feeling at the time... nothing was working ha.

[size=2][ I was ninja'd 71 times before I stopped counting a long time ago ] [ f.k.a. MikeTacular ] [ My Blog ] [ SWFer: Gaplessly looped MP3s in your Flash games ]

slicer4ever

6,773

November 24, 2012 07:51 PM

I almost changed my avatar one of the frames from this to illustrate how I was feeling at the time... nothing was working ha.

o god, that's awesome!=-)

Check out https://www.facebook.com/LiquidGames for some great games made by me on the Playstation Mobile market.

Check Out This Awesome C++ Lesson

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