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<title>The GNU Fortran Compiler: Standards</title>
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Previous: <a href="Project-Status.html#Project-Status" accesskey="p" rel="prev">Project Status</a>, Up: <a href="Introduction.html#Introduction" accesskey="u" rel="up">Introduction</a> &nbsp; [<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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<a name="Standards-1"></a>
<h3 class="section">1.6 Standards</h3>
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<p>The GNU Fortran compiler implements
ISO/IEC 1539:1997 (Fortran 95). As such, it can also compile essentially all
standard-compliant Fortran 90 and Fortran 77 programs. It also supports
the ISO/IEC TR-15581 enhancements to allocatable arrays.
</p>
<p>GNU Fortran also have a partial support for ISO/IEC 1539-1:2004 (Fortran
2003), ISO/IEC 1539-1:2010 (Fortran 2008), the Technical Specification
<code>Further Interoperability of Fortran with C</code> (ISO/IEC TS 29113:2012).
Full support of those standards and future Fortran standards is planned.
The current status of the support is can be found in the
<a href="Fortran-2003-status.html#Fortran-2003-status">Fortran 2003 status</a>, <a href="Fortran-2008-status.html#Fortran-2008-status">Fortran 2008 status</a> and
<a href="TS-29113-status.html#TS-29113-status">TS 29113 status</a> sections of the documentation.
</p>
<p>Additionally, the GNU Fortran compilers supports the OpenMP specification
(version 4.0, <a href="http://openmp.org/wp/openmp-specifications/">http://openmp.org/wp/openmp-specifications/</a>).
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