How to avoid C++ anonymous objects

Question

I have a ScopedLock class which can help to release lock automatically when running out of scope. However, the problem is: Sometimes team members write invalid

Answer 1

replace it with macro

#define CON2(x,y) x##y
#define CON(x,y) CON2(x,y)
#define LOCK(x)  ScopedLock CON(unique_,__COUNTER__)(mutex)

usage

{
  LOCK(mutex);
  //do stuff
}

This macro will generate unique names for locks, allowing lockeng of other mutexes in inner scopes