= Chart of Fortran 2003 Features supported by GNU Fortran =

 * See also '''[[Fortran2008Status|Fortran 2008 implementation status]]'''
 * See also '''[[TS29113Status|TS 29113: Technical Specification on Further Interoperability with C]]'''

When the question which Fortran 2003 feature are implemented in which compiler, came up in [[http://groups.google.com/group/comp.lang.fortran/topics|comp.lang.fortran]], the idea was born to create a chart of the features supported by the different compilers; the question was sent to the [[http://www.j3-fortran.org/|j3-Fortran]] list and the result was the series of Fortran Forum articles, listed below.

The listed items follow the sections in the following writeup:

 * [[http://doi.acm.org/10.1145/1243413.1243415|John Reid, ''The new features of Fortran 2003'', ACM SIGPLAN Fortran Forum '''96''', 10 (2007)]], which is also [[ftp://ftp.nag.co.uk/sc22wg5/N1601-N1650/N1648.pdf|available]] from the [[http://www.nag.co.uk/sc22wg5/|Fortran Standards homepage]]

The Fortran Forum articles:

 * [[http://doi.acm.org/10.1145/1243413.1243414|Ian D. Chivers and Jane Sleightholme, ''Compiler support for the Fortran 2003 standard'', ACM SIGPLAN Fortran Forum '''26''', 1 (2007)]].
 * Update: [[http://portalparts.acm.org/1280000/1279941/fm/frontmatter.pdf|ACM SIGPLAN Fortran Forum '''26''', 2 (2007)]] (part of the Frontmatter; contains the status of more compilers)
 * Update: [[http://doi.acm.org/10.1145/1330585.1330587|ACM SIGPLAN Fortran Forum '''26''', 3 (2007)]].
 * April 2009: [[http://doi.acm.org/10.1145/1520752.1520755|ACM SIGPLAN Fortran Forum '''28'''(1), 26 (2009)]]
 * August 2009: [[http://doi.acm.org/10.1145/1570522.1570525|ACM SIGPLAN Fortran Forum '''28'''(2), 15 (2009)]]
 * December 2009: [[http://doi.acm.org/10.1145/1667140.1667145|ACM SIGPLAN Fortran Forum '''28'''(3), 32 (2009)]]
 * April 2010: [[http://doi.acm.org/10.1145/1753166.1753169|ACM SIGPLAN Fortran Forum '''29'''(1), 29 (2010)]]
 * August 2010: [[http://doi.acm.org/10.1145/1837137.1837139|ACM SIGPLAN Fortran Forum '''29'''(2), 28 (2010)]]
 * November 2010: [[http://dx.doi.org/10.1145/1883575.1883578|ACM SIGPLAN Fortran Forum '''29'''(3), 26 (2010)]]
 * April 2011: [[http://dx.doi.org/10.1145/1961363.1961365|ACM SIGPLAN Fortran Forum '''30'''(1), 16 (2011)]]
 * August 2011: [[http://dx.doi.org/10.1145/2007333.2007335|ACM SIGPLAN Fortran Forum '''30'''(2), 18 (2011)]]
 * December 2011: [[http://dx.doi.org/10.1145/2073761.2073762|ACM SIGPLAN Fortran Forum '''30''' (2), 20 (2011)]]
 * April 2012: [[http://dx.doi.org/10.1145/2179280.2179282|ACM SIGPLAN Fortran Forum '''31''' (1),  23 (2012)]]
 * August 2012: [[http://dx.doi.org/10.1145/2338786.2338789|ACM SIGPLAN Fortran Forum '''31''' (2),  28 (2012)]]
 * December 2012 [[http://dx.doi.org/10.1145/2408747.2408749|ACM SIGPLAN Fortran Forum '''31''' (3),  17 (2012)]]
 * April 2013 [[http://dx.doi.org/10.1145/2460236.2460238|ACM SIGPLAN Fortran Forum '''32''' (1),  8 (2013)]]

A freely available version of the article can be found at:

    * http://fortranwiki.org/fortran/show/Fortran+2003+status
    * http://www.fortranplus.co.uk/resources/fortran_2003_2008_compiler_support.pdf (Fortran Forum PDF, always delayed by a few months)

== Implemented 2003 features in the GNU Fortran compiler ==

For other compilers see the Fortran Forum paper cited above. (These are not the only new features of Fortran 2003 though.)

See also: [[Fortran2003|Fortran 2003 Features in GNU Fortran]]

||<#bbddbb>'''ISO TRs'''||
||15580: IEEE Arithmetic          ||<#bbddbb>'''Yes''' (since 5.0) ||
||15581: Allocatable Enhancements ||<#bbddbb>'''Yes''' (since 4.2) ||
||||
||<#ffffdd>'''Data enhancements and object orientation''' ||
||Parameterized derived types              ||<#ffaaaa>No ([[GFortranPatchTracker|being developed for KIND only]]), [[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40196|PR40196]] ||
||[[ProcedurePointers|Procedure pointers]] ||<#bbddbb>'''Yes''' (partial since 4.4, components since 4.5) ||
||Finalization                             ||<#ffffdd>Partial (since 4.9, [[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37336|being developed]]) ||
||Procedures bound by name to a type       ||<#bbddbb>'''Yes''' (partial since 4.4, 2008-08-31) ||
||The PASS attribute                       ||<#bbddbb>'''Yes''' (since 4.5, 2009-07-25) ||
||Procedures bound to a type as operators  ||<#bbddbb>'''Yes''' (since 4.5, 2009-08-27) ||
||Type extension                           ||<#bbddbb>'''Yes''' (since 4.4, 2008-07-29) ||
||Overriding a type-bound procedure        ||<#bbddbb>'''Yes''' (since 4.4, 2008-08-28) ||
||Enumerations                             ||<#bbddbb>'''Yes''' (since 4.1) ||
||ASSOCIATE construct                      ||<#ffffdd>Partial (since 4.6, [[https://gcc.gnu.org/ml/fortran/2010-08/msg00188.html|2010-08-17]], bugs: [[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38936|PR38936]], [[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49636|PR49636]], [[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52832|PR52832]]) ||
||[[OOP|Polymorphic entities]]             ||<#bbddbb>'''Yes''' (partial since 4.5, arrays since 4.7, unlimited since 4.8) ||
||SELECT TYPE construct                    ||<#bbddbb>'''Yes''' (since 4.5, 2009-11-30) ||
||Deferred bindings and abstract types     ||<#bbddbb>'''Yes''' (since 4.4, 2008-09-02; deferred binding since 2009-03-29)||
||Allocatable scalars                      ||<#bbddbb>'''Yes''' (since 4.5, 2009-09-30)||
||Allocatable character length             ||<#ffffdd>Partial (since 4.6, as components since 4.9, bugs: [[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68241|PR68241]])||
||||
||<#ffffdd>'''Miscellaneous enhancements''' ||
||Structure constructors                       ||<#bbddbb>'''Yes''' (since 4.4, 2008-05-16) ||
||The allocate statement                       ||<#bbddbb>'''Yes''' (since 4.5, 2009-09-30) ||
||Assignment to an allocatable array           ||<#bbddbb>'''Yes''' (since 4.6, 2011-01-28)||
||Transferring an allocation                   ||<#bbddbb>'''Yes''' (since 4.2) ||
||More control of access from a module         ||<#bbddbb>'''Yes''' ||
||Renaming operators on the USE statement      ||<#ffffdd>Partial (not: operator(+)=>operator(.user.) etc.; [[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=31298|PR31298]])||
||Pointer assignment                           ||<#bbddbb>'''Yes''' (since 4.6, 2010-08-19) ||
||Pointer INTENT                               ||<#bbddbb>'''Yes''' (since 4.3) ||
||The VOLATILE attribute                       ||<#bbddbb>'''Yes''' (since 4.3) ||
||The IMPORT statement                         ||<#bbddbb>'''Yes''' (since 4.3) ||
||Intrinsic modules                            ||<#bbddbb>'''Yes''' (since 4.3) ||
||Access to the computing environment          ||<#bbddbb>'''Yes''' (since 4.3) ||
||Support for international character sets     ||<#bbddbb>'''Yes''' (since 4.4, 2008-04-30; UTF-8 I/O since 2008-08-16) ||
||Lengths of names and statements              ||<#bbddbb>'''Yes''' ||
||Binary, octal and hex constants              ||<#bbddbb>'''Yes''' (since 4.3, 2007-12-08) ||
||Array constructor syntax                     ||<#bbddbb>'''Yes''' (since 4.4, 2008-05-16) ||
||Specification and initialization expressions ||<#ffffdd>Partial ||
||Complex constants                            ||<#bbddbb>'''Yes''' ||
||Changes to intrinsic functions               ||<#ffffdd>Partial (missing: e.g. [[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29600|PR29600]], [[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36313|PR36313]])||
||Controlling IEEE underflow                   ||<#bbddbb>'''Yes''' (since 5.0) ||
||Another IEEE class value                     ||<#bbddbb>'''Yes''' (since 5.0) ||
||||
||<#bbddbb>'''Input/output enhancements''' ||
||Derived type input/output                   ||<#bbddbb>'''Yes''' (since 7.0, 2016-08-31) ||
||Asynchronous input/output                   ||<#bbddbb>'''Yes''' (since 4.4, 2008-04-05; implemented as [[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25829|synchronous I/O]]) ||
||FLUSH statement                             ||<#bbddbb>'''Yes''' (since 4.1) ||
||IOMSG= specifier                            ||<#bbddbb>'''Yes''' ||
||Stream access input/output                  ||<#bbddbb>'''Yes''' (since 4.2, 2006-08-15) ||
||ROUND= specifier                            ||<#bbddbb>'''Yes''' (for OUTPUT since 4.5, for INPUT since 4.9)||
||DECIMAL= specifier                          ||<#bbddbb>'''Yes''' (since 4.4, 2008-04-05) ||
||SIGN= specifier                             ||<#bbddbb>'''Yes''' (since 4.4, 2008-04-05) ||
||Kind type parameters of integer specifiers  ||<#bbddbb>'''Yes''' (since 4.4) ||
||Recursive input/output                      ||<#bbddbb>'''[[https://gcc.gnu.org/ml/fortran/2008-04/msg00165.html|Yes]]''' ||
||Intrinsic function for newline character    ||<#bbddbb>'''Yes''' (since 4.2) ||
||Input and output of IEEE exceptional values ||<#bbddbb>'''Yes''' ||
||Comma after a P edit descriptor             ||<#bbddbb>'''Yes''' ||
||||
||<#bbddbb>'''[[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32630|Interoperability with C]]''' ||
||Interoperability of intrinsic types ||<#bbddbb>'''Yes''' (since 4.3, 2007-07-02) ||
||Interoperability with C pointers    ||<#bbddbb>'''Yes''' (since 4.3, 2007-07-02) ||
||Interoperability of derived types   ||<#bbddbb>'''Yes''' (since 4.3, 2007-07-02) ||
||Interoperability of variables       ||<#bbddbb>'''Yes''' (since 4.3, 2007-07-02) ||
||Interoperability of procedures      ||<#bbddbb>'''Yes''' (since 4.3, 2007-07-02) ||
||Interoperability of global data     ||<#bbddbb>'''Yes''' (since 4.3, 2007-07-02) ||