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MultiThreading - unsure

Started by mageziyx Jun 19, 2002 at 9:20 AM 3 replies 650+ views

Original Post

Jun 19, 2002 at 9:20 AM

void Object::Function() { for(int count=0; count<100; count++) { cout << count; } } When several threads calls the above function, will each thread have its own copy of count or will they be referring to the same count? Does each thread own a separate stack?

djsteffey

165

djsteffey

Jun 19, 2002 at 9:25 AM

each thread will have their own count
as long as count is definded in the function like you have it
now if count was declared global then of course all the threads would be using the same count and you would get some messed up stuff going on, or maybe not messed up if that is what you were looking to do

"I pity the fool, thug, or soul who tries to take over the world, then goes home crying to his momma."
- Mr. T

Gabriel Fleseriu

Jun 19, 2002 at 9:25 AM

Yes, "count" will be different. But "cout" won''t, so you''ll probably get an output salad.

Forever trusting who we are
And nothing else matters - Metallica

Solo

Jun 19, 2002 at 9:27 AM

Yes, each thread get''s it''s own stack.

Stoffel

Jun 19, 2002 at 11:34 AM

heheheh, output salad. I''ll have to use that in a code review sometime.

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