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<title>The GNU Fortran Compiler: C_FUNLOC</title>
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<a name="C_005fFUNLOC"></a>
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<p>
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Next: <a href="C_005fLOC.html#C_005fLOC" accesskey="n" rel="next">C_LOC</a>, Previous: <a href="C_005fF_005fPROCPOINTER.html#C_005fF_005fPROCPOINTER" accesskey="p" rel="prev">C_F_PROCPOINTER</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="C_005fFUNLOC-_002d_002d_002d-Obtain-the-C-address-of-a-procedure"></a>
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<h3 class="section">9.51 <code>C_FUNLOC</code> — Obtain the C address of a procedure</h3>
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<a name="index-C_005fFUNLOC"></a>
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<a name="index-pointer_002c-C-address-of-procedures"></a>
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<dl compact="compact">
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<dt><em>Description</em>:</dt>
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<dd><p><code>C_FUNLOC(x)</code> determines the C address of the argument.
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</p>
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</dd>
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<dt><em>Standard</em>:</dt>
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<dd><p>Fortran 2003 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>Inquiry 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 = C_FUNLOC(x)</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>x</var></td><td width="70%">Interoperable function or pointer to such function.</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>The return value is of type <code>C_FUNPTR</code> and contains the C address
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of the 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">module x
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use iso_c_binding
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implicit none
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contains
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subroutine sub(a) bind(c)
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real(c_float) :: a
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a = sqrt(a)+5.0
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end subroutine sub
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end module x
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program main
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use iso_c_binding
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use x
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implicit none
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interface
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subroutine my_routine(p) bind(c,name='myC_func')
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import :: c_funptr
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type(c_funptr), intent(in) :: p
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end subroutine
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end interface
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call my_routine(c_funloc(sub))
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end program main
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</pre></div>
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</dd>
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<dt><em>See also</em>:</dt>
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<dd><p><a href="C_005fASSOCIATED.html#C_005fASSOCIATED">C_ASSOCIATED</a>, <a href="C_005fLOC.html#C_005fLOC">C_LOC</a>, <a href="C_005fF_005fPOINTER.html#C_005fF_005fPOINTER">C_F_POINTER</a>, <a href="C_005fF_005fPROCPOINTER.html#C_005fF_005fPROCPOINTER">C_F_PROCPOINTER</a>
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