Editing Miniature/Policies
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Line 90: | Line 90: | ||
** Details: | ** Details: | ||
- | *** QPointers keep track of object deletion and set all referring QPointers to zero, preventing dangling pointers. Especially when using signals & slots, this is an often (and sometimes hard to spot!) source of bugs. With QPointers, you can wrap your code with | + | *** QPointers keep track of object deletion and set all referring QPointers to zero, preventing dangling pointers. Especially when using signals & slots, this is an often (and sometimes hard to spot!) source of bugs. With QPointers, you can wrap your code with guards like so: |
if (m_member) | if (m_member) | ||
{ | { | ||
// Do sth with m_member object. | // Do sth with m_member object. | ||
- | // This block *never* gets executed | + | // This block *never* gets executed if m_meber was deleted elsewhere. |
} | } | ||
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