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| <h3 class="section">8.65 <code>DIM</code> — Positive difference</h3> |
| |
| <p><a name="index-DIM-578"></a><a name="index-IDIM-579"></a><a name="index-DDIM-580"></a><a name="index-positive-difference-581"></a> |
| <dl> |
| <dt><em>Description</em>:<dd><code>DIM(X,Y)</code> returns the difference <code>X-Y</code> if the result is positive; |
| otherwise returns zero. |
| |
| <br><dt><em>Standard</em>:<dd>Fortran 77 and later |
| |
| <br><dt><em>Class</em>:<dd>Elemental function |
| |
| <br><dt><em>Syntax</em>:<dd><code>RESULT = DIM(X, Y)</code> |
| |
| <br><dt><em>Arguments</em>:<dd> |
| <p><table summary=""><tr align="left"><td valign="top" width="15%"><var>X</var> </td><td valign="top" width="70%">The type shall be <code>INTEGER</code> or <code>REAL</code> |
| <br></td></tr><tr align="left"><td valign="top" width="15%"><var>Y</var> </td><td valign="top" width="70%">The type shall be the same type and kind as <var>X</var>. |
| <br></td></tr></table> |
| |
| <br><dt><em>Return value</em>:<dd>The return value is of type <code>INTEGER</code> or <code>REAL</code>. |
| |
| <br><dt><em>Example</em>:<dd> |
| <pre class="smallexample"> program test_dim |
| integer :: i |
| real(8) :: x |
| i = dim(4, 15) |
| x = dim(4.345_8, 2.111_8) |
| print *, i |
| print *, x |
| end program test_dim |
| </pre> |
| <br><dt><em>Specific names</em>:<dd> |
| <p><table summary=""><tr align="left"><td valign="top" width="20%">Name </td><td valign="top" width="20%">Argument </td><td valign="top" width="20%">Return type </td><td valign="top" width="25%">Standard |
| <br></td></tr><tr align="left"><td valign="top" width="20%"><code>DIM(X,Y)</code> </td><td valign="top" width="20%"><code>REAL(4) X, Y</code> </td><td valign="top" width="20%"><code>REAL(4)</code> </td><td valign="top" width="25%">Fortran 77 and later |
| <br></td></tr><tr align="left"><td valign="top" width="20%"><code>IDIM(X,Y)</code> </td><td valign="top" width="20%"><code>INTEGER(4) X, Y</code> </td><td valign="top" width="20%"><code>INTEGER(4)</code> </td><td valign="top" width="25%">Fortran 77 and later |
| <br></td></tr><tr align="left"><td valign="top" width="20%"><code>DDIM(X,Y)</code> </td><td valign="top" width="20%"><code>REAL(8) X, Y</code> </td><td valign="top" width="20%"><code>REAL(8)</code> </td><td valign="top" width="25%">Fortran 77 and later |
| <br></td></tr></table> |
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