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Add more comments about cleanup

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This commit is contained in:
Nanosonde 2020-07-14 13:45:50 +02:00
parent 18a705f8d5
commit a005e8f654
1 changed files with 8 additions and 1 deletions
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9
src/knx/simple_functional.h
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@ -3,8 +3,10 @@
//
// Basis is https://shaharmike.com/cpp/naive-std-function/
//
// It uses a few bytes on the heap for functor object.
// Copy assignment just copies the pointer to the functor object and does not create a new copy! The last one has to cleanup.
// Do not forget to call cleanup() once you do not need the function object (functor) anymore to free the memory.
// No move semantics and/or smart pointers are used
// No move semantics and/or smart pointers are used.
template <typename T>
class function;
@ -42,12 +44,17 @@ class function<ReturnValue(Args...)>
ReturnValue operator()(Args... args) const
{
//assert(callable_);
if (callable_ == nullptr)
{
while (true);
}
return callable_->Invoke(args...);
}
void cleanup()
{
delete callable_;
callable_ = nullptr;
}
private: