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Hello,</div>
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<div class="m_1083750009899479956gmail_signature" data-smartmail="gmail_signature">
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<div class="m_1083750009899479956gmail_signature" data-smartmail="gmail_signature">
I'd like to be able to check if a Mat object has been created and allocated; if it hasn't been created yet, I want to create and allocate it, otherwise I want to reuse the existing allocation.</div>
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<div class="m_1083750009899479956gmail_signature" data-smartmail="gmail_signature">
The context is that I have a Mat variable declared (but not defined) in a header file, so that it is available to the entire class. It is created (MatCreate) and allocated at a later point in the implementation, and may need to be reused with different values
several times. But I don't want to allocate it unless it's needed, because it would be quite large.</div>
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<div class="m_1083750009899479956gmail_signature" data-smartmail="gmail_signature">
Also, I want my destructor to only call MatDestroy on the matrix if it has been created (otherwise it gives seg faults).</div>
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<div class="m_1083750009899479956gmail_signature" data-smartmail="gmail_signature">
How can I achieve this?</div>
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<div class="m_1083750009899479956gmail_signature" data-smartmail="gmail_signature">
Thanks.</div>
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