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Adjust to the moving target called the C++ standard. Apparently nowadays it's not allowed to define an explicit copy constructor but not an assignment operator. Consequently, defining the explicit copy constructor in terms of the implicit/automatic assignment operator for general convenience no longer works. Add assignment operators. Caution: not tested with the IBM compiler, but there's no particular reason it shouldn't work.
author David A. Holland
date Mon, 30 May 2022 23:46:22 -0400
parents 13d2b8934445
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<H1>Utility Array Definitions</H1>
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          <tt>util.h</tt> defines one simple template class and three simple
          template functions which simplify dealing with arrays of an
          arbitrary type T.
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          The functions are "copy", "clear" and "memdup". The purpose
          of these functions is to allow you to move, set to zero, or
          duplicate an array without explicit mention of the size of
          the array elements.
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          The class "protect" is designed to save the content of an
          array on entry to a function and restore it on exit.

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