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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>Pair Class Definition</H1>
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<H2>Introduction</H2>
<P>
          <CODE> pair&lt;class T&gt; </CODE> is a template class that provides arithmetic
          and comparison operations on ordered pairs of elements of
          type T. Class T must  implement arithmetic and comparison
          operators.
<P>
          All operations are element-wise, including multiplication,
          division and comparisons. Using these definitions, sets
          of pairs are not well ordered in the mathematical sense. That
          is, it is possible that for pairs p and q both p &lt; q and
          p &gt; q could be false.
<P>
          Pairs of integers are quite useful for recording and
          manipulating screen coordinates.
<P>
<BR>

<H2>     Constructors </H2>

          There are two constructors, one which takes two arguments of
          type T, and sets the elements of the pair appropriately. The
          other constructor takes no arguments, and initializes the
          elements to zero.

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                  AnaGram parser generator - examples<BR>
                  Class libraries - Pair class definition<BR>
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