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<h5 class="subsubsection">15.4.4.1 Fortran Operators and Expressions</h5>

<p><a name="index-Fortran-operators-and-expressions-838"></a>
Operators must be defined on values of specific types.  For instance,
<code>+</code> is defined on numbers, but not on characters or other non-
arithmetic types.  Operators are often defined on groups of types.

     <dl>
<dt><code>**</code><dd>The exponentiation operator.  It raises the first operand to the power
of the second one.

     <br><dt><code>:</code><dd>The range operator.  Normally used in the form of array(low:high) to
represent a section of array.

     <br><dt><code>%</code><dd>The access component operator.  Normally used to access elements in derived
types.  Also suitable for unions.  As unions aren't part of regular Fortran,
this can only happen when accessing a register that uses a gdbarch-defined
union type. 
</dl>

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