boost return null shared_ptr

std::vectorboost::shared_ptr > vec; dwn.220.v.ua_back(nullptr); Typicall...

std::vectorboost::shared_ptr > vec; dwn.220.v.ua_back(nullptr); Typically I declare the null ptr as a static in the class of the pointer. inline CharVecHandle newCharVec(void) { return CharVecHandle(); } int main (void).

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Is it correct to return shared_ptr implicitly initialized with nullptr like...

Is it correct to return shared_ptr implicitly initialized with nullptr like in shared_ptr, you must check that it isn't null, because weak_ptr may had.

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Typically I declare the null ptr as a static in the class of the pointer. #...

Typically I declare the null ptr as a static in the class of the pointer. #include boost\dwn.220.v.ua> class Foo; // forward decl typedef inline CharVecHandle newCharVec(void) { return CharVecHandle(); } int main (void).

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I have some code that looks like so foo *f(x){ if() return wilma; return 0;...

I have some code that looks like so foo *f(x){ if() return wilma; return 0; } where foo is a pointer type that I am replacing with a boost::shared_ptr.

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I'm just going through my code, peppering it with boost::shared_ptr, a...

I'm just going through my code, peppering it with boost::shared_ptr, and have just noticed that one function returns NULL in come cases.

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How to return a Null pointer for shared_ptr. Hi, I defined a shared_ptr in ...

How to return a Null pointer for shared_ptr. Hi, I defined a shared_ptr in to a map table. How can I return a NULL pointer in a function to search.

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So, if you have a function that returns a boost shared_ptr and you want to ...

So, if you have a function that returns a boost shared_ptr and you want to pass NULL to represent either an error state or a not-found state, you.

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So naturally, shared_ptr is comparable against NULL.? Maybe we can convert ...

So naturally, shared_ptr is comparable against NULL.? Maybe we can convert the shared_ptr to a boolean type by return false if it is NULL, and return true Here's the solution chosen by boost library (similar solution also.

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I am playing with boost pointer and try to wrap the following codes return ...

I am playing with boost pointer and try to wrap the following codes return a; } else return NULL; } Now I wrap a as shared_ptr(new A()) and.

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I'm using boost smart pointers specifically, but one thing I can'...

I'm using boost smart pointers specifically, but one thing I can't return NULL; // found nothing, now they can check the result of this "(shared_ptr) 0" doesn't work, NULL doesn't work, tried a few other things as well.. }.

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class X { private: shared_ptr this_; int i_; public: explicit X(int i): thi...

class X { private: shared_ptr this_; int i_; public: explicit X(int i): this_(this, null_deleter()), i_(i) { } // repeat in all weak_ptr get_weak_ptr() const { return this_; } };.

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The header boost/core/dwn.220.v.ua> defines the boost::null_deleter func...

The header boost/core/dwn.220.v.ua> defines the boost::null_deleter function std::shared_ptr make_stream() { return std::shared_ptr.

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The attached program demonstrates that a null shared_ptr produces a hash va...

The attached program demonstrates that a null shared_ptr produces a hash value of zero and that (ostensibly) all non-null instances produce a hash value.

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Clearing a Boost::shared_ptr Like Assigning NULL to a Pointer v. Use of &qu...

Clearing a Boost::shared_ptr Like Assigning NULL to a Pointer v. Use of "this" Pointer vi. . return sp; // might return an empty shared_ptr. } Clearing a.

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freely convertable to a boost shared_ptr. operator boost_ptr_t() const. { r...

freely convertable to a boost shared_ptr. operator boost_ptr_t() const. { return m_ptr; }. // or a weak ptr. operator boost_weak_ptr_t() const.

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