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Resize STL Vector

I can not find this information. I am dealing with a strange situation here, where I am inside the loop, and I can get random information at any given time. This information should be stored in a vector. Now, for each frame, I must set this vector to ensure that I will not extract the space (I write values ​​to random points in the vector using indexing).

Now, believing that there is no way to change this piece of code, I want to know if the vector "ignores" the resize () function if I send an argument that exactly matches the size of the vector? Where can I find this information?

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2 answers

From MSDN link 1

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ISO ++ (. 485 2) vector::resize

void resize ( size_type sz , T c = T ());

if ( sz > size ())
  insert ( end () , sz - size () , c );
else if ( sz < size ())
  erase ( begin ()+ sz , end ());
else
; // Does nothing

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+9

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