capturing enter and exit of every function

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capturing enter and exit of every function

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09-04-2008

jjinno

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Join Date: Jul 2007

Location: Cloud 9

Posts: 72

capturing enter and exit of every function

If I have a "Hello World" function (just prints that) and a similar "Goodbye World" function... is there a way (maybe a compiler option?) that I can get them to be executed directly as the absolute first and last things run in every function call.

So for example, the following code:

Code:

int foo()
{
cout << "I think therefor I am" << endl;
return 0;
}

should print out:

Quote:

Hello World
I think therefor I am
Goodbye World

I assume from this model, that a simple find&replace would work, even using something like grep/sed to add a call to hello() as the first call, and a goodbye() as the last thing before any return/function-exit... but is this doable without manually (including a sed script as "manual") modifying the code? IE, is there a pre-call/post-call function wrapper?...

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