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<h4 class="subsection">6.1.1 Old-style kind specifications</h4>

<p><a name="index-kind_002c-old_002dstyle-307"></a>
GNU Fortran allows old-style kind specifications in declarations.  These
look like:
<pre class="smallexample">           TYPESPEC*size x,y,z
</pre>
   <p class="noindent">where <code>TYPESPEC</code> is a basic type (<code>INTEGER</code>, <code>REAL</code>,
etc.), and where <code>size</code> is a byte count corresponding to the
storage size of a valid kind for that type.  (For <code>COMPLEX</code>
variables, <code>size</code> is the total size of the real and imaginary
parts.)  The statement then declares <code>x</code>, <code>y</code> and <code>z</code> to
be of type <code>TYPESPEC</code> with the appropriate kind.  This is
equivalent to the standard-conforming declaration
<pre class="smallexample">           TYPESPEC(k) x,y,z
</pre>
   <p class="noindent">where <code>k</code> is the kind parameter suitable for the intended precision.  As
kind parameters are implementation-dependent, use the <code>KIND</code>,
<code>SELECTED_INT_KIND</code> and <code>SELECTED_REAL_KIND</code> intrinsics to retrieve
the correct value, for instance <code>REAL*8 x</code> can be replaced by:
<pre class="smallexample">     INTEGER, PARAMETER :: dbl = KIND(1.0d0)
     REAL(KIND=dbl) :: x
</pre>
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