claculate time of function

**dreamvig** · 08-25-2015

Hi,
it was time i put my problem with calculating time of function
claculate time of function
after progress with the code the forum member
Elysia give me this instruction to resolve the problem of "0.00" as result

Code:

namespace stdc = std::chrono;
auto start = stdc::high_resolution_clock::now();
constexpr int LoopCount = 1000000;
for (int i = 0; i < LoopCount; i++)
{
    // My code here
}
auto end = stdc::high_resolution_clock::now();
std::cout << stdc::duration_cast<stdc::milliseconds>((end - start) / LoopCount).count() << "\n";

Now, i am using Visual c++2010 , that don't have "chrono" as std
is there another alternative of "chrono" and "constexpr"

**jimblumberg** · 08-25-2015

Why not upgrade Visual C++ to the most recent version?

Jim

**laserlight** · 08-25-2015

Originally Posted by dreamvig

Now, i am using Visual c++2010 , that don't have "chrono" as std
is there another alternative of "chrono" and "constexpr"

You can use Boost.Chrono for an implementation of chrono; you can use const instead of constexpr here.

**dreamvig** · 08-25-2015

You can use Boost.Chrono

Yes , i tried to do that adding this include

Code:


	Code:
	#include <boost/chrono.hpp>

but it give me fatal error, maybe because i use Ogre3d that have file "boost" too

**laserlight** · 08-25-2015

Originally Posted by dreamvig

but it give me fatal error, maybe because i use Ogre3d that have file "boost" too

Maybe, or maybe it is something else.

Maybe you should just upgrade to a newer IDE and compiler as jimblumberg suggested in post #2. Maybe it will be simpler than trying to figure out a vague "fatal error" and having to deal with maybes.

**dreamvig** · 08-25-2015

The re is no solution, just to upgrade?
because i don't have visual 2012 , and i can't update my visual 2010

**laserlight** · 08-25-2015

Originally Posted by dreamvig

The re is no solution, just to upgrade?

I already suggested Boost.Chrono as a solution. Fix the "fatal error" and you should be good to go.

**dreamvig** · 08-25-2015

thanks i will see
my question was , the function in above (using chrono or boost) is it the unique idea of solution to resolve my problem of calculating the time.

**laserlight** · 08-25-2015

No, there are other ways. A search of the Web should help.

**Elysia** · 08-25-2015

Visual studio 2015 is the latest and it is free. There's no reason for you to not use it, so why aren't you upgrading?

**dreamvig** · 08-26-2015

Originally Posted by Elysia

Visual studio 2015 is the latest and it is free. There's no reason for you to not use it, so why aren't you upgrading?

Thank you for this information,
i will download it

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