# Re: 2nd Attempt : How can I count the actual number of operations performed in a program

From:
"Tom1s" <NULL@NULL.NULL>
Newsgroups:
comp.lang.c++
Date:
Mon, 08 May 2006 22:00:08 GMT
Message-ID:
<IbP7g.8885\$j7.305017@news.indigo.ie>
posted:

ok I know I posted this question previously and then I got a reply and
I realized that I had asked a really dumb question but now I realize
that my question wasn't that dumb at all !

Here's the route I'd take. (And yes it's dirty). Here comes some unchecked,
off-the-cuff code:

class Counter {

static unsigned long total_amount; // <- Total amount for all types
unsigned long specific_amount; // <- Total amount for a specific type

public:

Counter() : specific_amount(0) {}

Counter& operator++() { ++total_amount; ++specific_amount; return *this;
}

unsigned long GetAmount() const { return specific_amount; }
};

unsigned long Counter::total_amount = 0;

template<class T>
class PrimitiveTypeHolder {
private:

T value;

public:

static Counter counter;

T& operator+=(const T& rhs)
{
++counter; /* Record the operation */

value += rhs;

return *this;
}

T operator+(const T& rhs)
{
return PrimitiveTypeHolder<T>(*this).operator+=(rhs);
}

};

Then, I would use macro trickery to turn:

int a;
float b;
double c;

into:

PrimitiveTypeHolder<int> a;
PrimitiveTypeHolder<float> b;
PrimitiveTypeHolder<double> c;

I'm not sure if the following macro would work:

#define int PrimitiveTypeHolder<int>

And then at the end of your program, you can check the total amount of
operations:

cout << Counter::GetTotalAmount();

Or just for a given type:

cout << PrimitiveTypeHolder<float>().counter.GetAmount();

There's probably a thousand ways of doing this, but this one came to mind.

-Tom1s

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