Bizarre Conditional Operator Problem in C++

kingofsquirrels

Unregistered

Post: #1

May 23, 2006 — 02:18 PM

Hi all,

Today I encountered a very strange problem. It appears that the conditional '>' operator is not working correctly in the following code:

Code:

if (velocity.x() > MAX_VELOCITY_WHILE_RUNNING_ON_GROUND);

{

    printf("(velocity.x = %f) > (max_vel = %f)\n\n", velocity.x(), MAX_VELOCITY_WHILE_RUNNING_ON_GROUND);

    velocity.setX(MAX_VELOCITY_WHILE_RUNNING_ON_GROUND);

}

The output of the printf() function is: (velocity.x = -2.666667) > (max_vel = 40.000000).

velocity.x() is an inline function that simply returns a private _x variable. MAX_VELOCITY_WHILE_RUNNING_ON_GROUND is a static const float set to 40.0.

Any ideas what might be causing this? I'm using XCode 2.1 with GCC 4.0.

Thanks!
-- Will

Taxxodium

Moderator

Posts: 508
Joined: 2002.09

Post: #2

May 23, 2006 — 02:51 PM

if (velocity.x() > MAX_VELOCITY_WHILE_RUNNING_ON_GROUND);

remove the semi colon at the end and it should work.

"When you dream, there are no rules..."

kingofsquirrels

Unregistered

Post: #3

May 23, 2006 — 02:56 PM

Wow, I definitely should have seen that. Thanks for the prompt reply!

Possibly Related Threads...

Thread:		Author	Replies:	Views:	Last Post
	Bizarre glitch...	vnvrymdreglage	8	3,747	Jan 22, 2007 06:14 PM Last Post: vnvrymdreglage
	Bizarre Bug	ferum	7	3,326	Jan 20, 2007 03:26 PM Last Post: ferum
	Conditional Compilation Errors	Blacktiger	8	3,070	Jun 15, 2006 09:42 PM Last Post: szymczyk