从std :: make_shared到std :: shared_ptr的分配静默失败？ （VS2012错误）

Question

EDIT: Renaming the global var did the trick. The same was being reused in other CPP files in the same project. The editor was "confusing" the variable, showing the content of another shared_ptr with the same name!

Thanks for all who answered and tried to help ;)

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In VS2012 IDE, VS2010 compiler, Debug

When assigning from make_shared, it doesn't work (shared_ptr stays nullptr).

I can see in the debugger the class ctor was called.

In the header file

    struct  ROLLWRKAREA  Workarea
    {
        short idLoc;
// ...
    ROLLWRKAREA(short idLocation=LS_NOWHERE) : 
        idLoc(idLocation),
// …
};
typedef std::shared_ptr<ROLLWRKAREA> LPROLLWRKAREA;

In My CPP ->

static LPROLLWRKAREA pWA; // ...and pointer

BOOL CRollEx::OnInitDialog ()
{
         CMMDialog::OnInitDialog ();

    pWA = std::make_shared<ROLLWRKAREA>();

… pWA has empty (nullptr) after this line.

Is this expected? Am I doing something stupid here? Is there a workaround? I'm trying to avoid using .reset(new ROLLWRKAREA())

Thanks in advance

Answer 1

In the Line
pWA = std::make_shared<ROLLWRKAREA>(); you need to give something to make shared...
Until then, you get the most sensible you can expect: NULL