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<h3 class="section">1.6 Standards</h3>
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<li><a accesskey="1" href="Varying-Length-Character-Strings.html#Varying-Length-Character-Strings">Varying Length Character Strings</a>
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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>In the future, the GNU Fortran compiler will also support ISO/IEC
1539-1:2004 (Fortran 2003), ISO/IEC 1539-1:2010 (Fortran 2008) and
future Fortran standards. Partial support of the Fortran 2003 and
Fortran 2008 standard is already provided; the current status of the
support is reported in the <a href="Fortran-2003-status.html#Fortran-2003-status">Fortran 2003 status</a> and
<a href="Fortran-2008-status.html#Fortran-2008-status">Fortran 2008 status</a> sections of the documentation.
<p>Additionally, the GNU Fortran compilers supports the OpenMP specification
(version 3.1, <a href="http://openmp.org/wp/openmp-specifications/">http://openmp.org/wp/openmp-specifications/</a>).
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