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<title>The GNU Fortran Compiler: EOSHIFT</title>
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<a name="EOSHIFT"></a>
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<div class="header">
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<p>
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Next: <a href="EPSILON.html#EPSILON" accesskey="n" rel="next">EPSILON</a>, Previous: <a href="DTIME.html#DTIME" accesskey="p" rel="prev">DTIME</a>, Up: <a href="Intrinsic-Procedures.html#Intrinsic-Procedures" accesskey="u" rel="up">Intrinsic Procedures</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
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<a name="EOSHIFT-_002d_002d_002d-End_002doff-shift-elements-of-an-array"></a>
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<h3 class="section">9.86 <code>EOSHIFT</code> — End-off shift elements of an array</h3>
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<a name="index-EOSHIFT"></a>
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<a name="index-array_002c-shift"></a>
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<dl compact="compact">
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<dt><em>Description</em>:</dt>
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<dd><p><code>EOSHIFT(ARRAY, SHIFT[, BOUNDARY, DIM])</code> performs an end-off shift on
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elements of <var>ARRAY</var> along the dimension of <var>DIM</var>. If <var>DIM</var> is
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omitted it is taken to be <code>1</code>. <var>DIM</var> is a scalar of type
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<code>INTEGER</code> in the range of <em>1 \leq DIM \leq n)</em> where <em>n</em> is the
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rank of <var>ARRAY</var>. If the rank of <var>ARRAY</var> is one, then all elements of
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<var>ARRAY</var> are shifted by <var>SHIFT</var> places. If rank is greater than one,
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then all complete rank one sections of <var>ARRAY</var> along the given dimension are
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shifted. Elements shifted out one end of each rank one section are dropped. If
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<var>BOUNDARY</var> is present then the corresponding value of from <var>BOUNDARY</var>
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is copied back in the other end. If <var>BOUNDARY</var> is not present then the
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following are copied in depending on the type of <var>ARRAY</var>.
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</p>
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<table>
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<tr><td width="15%"><em>Array Type</em></td><td width="80%"><em>Boundary Value</em></td></tr>
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<tr><td width="15%">Numeric</td><td width="80%">0 of the type and kind of <var>ARRAY</var>.</td></tr>
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<tr><td width="15%">Logical</td><td width="80%"><code>.FALSE.</code>.</td></tr>
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<tr><td width="15%">Character(<var>len</var>)</td><td width="80%"><var>len</var> blanks.</td></tr>
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</table>
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</dd>
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<dt><em>Standard</em>:</dt>
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<dd><p>Fortran 95 and later
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</p>
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</dd>
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<dt><em>Class</em>:</dt>
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<dd><p>Transformational function
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</p>
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</dd>
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<dt><em>Syntax</em>:</dt>
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<dd><p><code>RESULT = EOSHIFT(ARRAY, SHIFT [, BOUNDARY, DIM])</code>
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</p>
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</dd>
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<dt><em>Arguments</em>:</dt>
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<dd><table>
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<tr><td width="15%"><var>ARRAY</var></td><td width="70%">May be any type, not scalar.</td></tr>
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<tr><td width="15%"><var>SHIFT</var></td><td width="70%">The type shall be <code>INTEGER</code>.</td></tr>
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<tr><td width="15%"><var>BOUNDARY</var></td><td width="70%">Same type as <var>ARRAY</var>.</td></tr>
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<tr><td width="15%"><var>DIM</var></td><td width="70%">The type shall be <code>INTEGER</code>.</td></tr>
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</table>
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</dd>
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<dt><em>Return value</em>:</dt>
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<dd><p>Returns an array of same type and rank as the <var>ARRAY</var> argument.
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</p>
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</dd>
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<dt><em>Example</em>:</dt>
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<dd><div class="smallexample">
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<pre class="smallexample">program test_eoshift
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integer, dimension(3,3) :: a
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a = reshape( (/ 1, 2, 3, 4, 5, 6, 7, 8, 9 /), (/ 3, 3 /))
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print '(3i3)', a(1,:)
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print '(3i3)', a(2,:)
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print '(3i3)', a(3,:)
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a = EOSHIFT(a, SHIFT=(/1, 2, 1/), BOUNDARY=-5, DIM=2)
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print *
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print '(3i3)', a(1,:)
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print '(3i3)', a(2,:)
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print '(3i3)', a(3,:)
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end program test_eoshift
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</pre></div>
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</dd>
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</dl>
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Next: <a href="EPSILON.html#EPSILON" accesskey="n" rel="next">EPSILON</a>, Previous: <a href="DTIME.html#DTIME" accesskey="p" rel="prev">DTIME</a>, Up: <a href="Intrinsic-Procedures.html#Intrinsic-Procedures" accesskey="u" rel="up">Intrinsic Procedures</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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