c++ - insert arrays to vector -

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I need to write simple code with vectors and I am a little struggling.

I have the buffer array) which is received from any other program data in the callback, I need to insert vector-at the end of the entire array. 

  vector & lt; u_char & gt; Vector; Callback (new data inside buffer) {copy buffer at the end of vector; }   
 In the end, vector consider to include continuous data from the buffer.  
 Is there an effective way to do this without inserting four characters with "for"?   for  (...) vector.push_back [i] = buffer [j]   
 thanks!   
 
 
 If you know the value, then you can insert a boundary:  
  vector.insert (vector.back (), buffer, buffer + size);   
 There is also a more general algorithm for this type of thing:  
  #include & lt; Iterator & gt; # Include & lt; Algorithm & gt; Std :: copy (buffer, buffer + size, std :: back_inserter (vector));

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