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<h3 class="section">5.1 KIND Type Parameters</h3>
<p><a name="index-kind-302"></a>
The <code>KIND</code> type parameters supported by GNU Fortran for the primitive
data types are:
<dl>
<dt><code>INTEGER</code><dd>1, 2, 4, 8*, 16*, default: 4 (1)
<br><dt><code>LOGICAL</code><dd>1, 2, 4, 8*, 16*, default: 4 (1)
<br><dt><code>REAL</code><dd>4, 8, 10*, 16*, default: 4 (2)
<br><dt><code>COMPLEX</code><dd>4, 8, 10*, 16*, default: 4 (2)
<br><dt><code>CHARACTER</code><dd>1, 4, default: 1
</dl>
<p class="noindent">* = not available on all systems <br>
(1) Unless -fdefault-integer-8 is used <br>
(2) Unless -fdefault-real-8 is used
<p class="noindent">The <code>KIND</code> value matches the storage size in bytes, except for
<code>COMPLEX</code> where the storage size is twice as much (or both real and
imaginary part are a real value of the given size). It is recommended to use
the <code>SELECTED_CHAR_KIND</code>, <code>SELECTED_INT_KIND</code> and
<code>SELECTED_REAL_KIND</code> intrinsics or the <code>INT8</code>, <code>INT16</code>,
<code>INT32</code>, <code>INT64</code>, <code>REAL32</code>, <code>REAL64</code>, and <code>REAL128</code>
parameters of the <code>ISO_FORTRAN_ENV</code> module instead of the concrete values.
The available kind parameters can be found in the constant arrays
<code>CHARACTER_KINDS</code>, <code>INTEGER_KINDS</code>, <code>LOGICAL_KINDS</code> and
<code>REAL_KINDS</code> in the <code>ISO_FORTRAN_ENV</code> module
(see <a href="ISO_005fFORTRAN_005fENV.html#ISO_005fFORTRAN_005fENV">ISO_FORTRAN_ENV</a>).
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