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//using namespace boost;
//using namespace std;

mutex m;
m.lock();
//... something here
m.unlock();

std::mutex m;
m.lock();
//... something here
m.unlock();

Randor wrote:

Can't make that mistake if you use the entire scope:

M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.

Nelek wrote:

care to elaborate?

honey the codewitch wrote:

Some people here might suggest that using namespace std, even in main.cpp is bad form because of all the stuff it drags in.