https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&feed=atom&action=history
HSFFIG/Tutorial - Revision history
2024-03-29T05:58:53Z
Revision history for this page on the wiki
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https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=28474&oldid=prev
F.s.: formatting
2009-06-03T11:47:16Z
<p>formatting</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:47, 3 June 2009</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Structure types are imported using the ''newtype'' Haskell statement. Type name is prefixed with "S_" for structures and "U_" for unions. If a structure was declared as ''struct foo'', Haskell type name will be ''S_foo''. If a structure was declared anonymously (''struct'' without identifier), a unique numeric identifier will be used as structure type name, e. g. S_65.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Structure types are imported using the ''newtype'' Haskell statement. Type name is prefixed with "S_" for structures and "U_" for unions. If a structure was declared as ''struct foo'', Haskell type name will be ''S_foo''. If a structure was declared anonymously (''struct'' without identifier), a unique numeric identifier will be used as structure type name, e. g. S_65.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>A imported structure type declaration looks like: <tt>newtype S_foo = S_foo ()<del class="diffchange diffchange-inline">></del>/tt>. Indeed, this type name serves only identification purpose.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>A imported structure type declaration looks like: <tt>newtype S_foo = S_foo ()<ins class="diffchange diffchange-inline"><</ins>/tt>. Indeed, this type name serves only identification purpose.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In practice, Haskell application developers using '''hsffig''' do not need to memorize these clumsy type identifiers: Haskell type inference system carries most of the burden.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In practice, Haskell application developers using '''hsffig''' do not need to memorize these clumsy type identifiers: Haskell type inference system carries most of the burden.</div></td>
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F.s.
https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=13510&oldid=prev
BrettGiles: Hsffig tutorial moved to HSFFIG/Tutorial
2007-06-15T22:16:21Z
<p>Hsffig tutorial moved to HSFFIG/Tutorial</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:16, 15 June 2007</td>
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BrettGiles
https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=13509&oldid=prev
BrettGiles: Removing portion that was moved to HSFFIG
2007-06-15T22:15:47Z
<p>Removing portion that was moved to HSFFIG</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:15, 15 June 2007</td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>== Purpose ==</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''Hsffig''' is a tool to convert a '''C''' header file (.h) into Haskell code containing FFI import statements for all entities whose declarations are found in the header file. Current release version of '''hsffig''' is 1.0 (release date 07/30/2005).</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>== Getting HSFFIG ==</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>=== Downloading ===</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The project homepage is located at http://hsffig.sourceforge.net. '''Hsffig''' source code may be downloaded from the "File Releases" section of the web page http://www.sourceforge.net/projects/hsffig. Source tarball file name is <tt>hsffig-1.0.tar.gz</tt>. [http://www.darcs.net Darcs] users may check out from the repos at:</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* darcs get http://hsffig.sourceforge.net/repos/hsffig-1.0 ("stable" snapshot)</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* darcs get http://www.golubovsky.org/repos/hsffig-1.0 ("unstable" snapshot)</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>=== Building from source ===</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''Hsffig''' has been released as a [http://www.haskell.org/cabal Cabalized] package. The distribution tarball file contains a minimal version of '''Cabal''' setup program, so it is not necessary to have '''Cabal''' installed in order to install '''hsffig'''. Even more, it is advised to use the '''Cabal''' setup program (further referred to as ''cabal-setup'') as it was slightly tailored to the details of '''hsffig''' installation.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># After unpacking the tarball, go to the root directory of the distibution and run <tt>make</tt>. This builds the ''cabal-setup'' executable necessary for proper package build and installation.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># Run <tt>./cabal-setup configure</tt>. Alex is required to compile '''hsffig''', so it is necessary to provide path to Alex executable (the ''--with-alex='' option of <tt>./cabal-setup configure</tt>). This creates the package build configuration file.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># Run <tt>./cabal-setup build</tt>. This builds the '''hsffig''' library, and all executables.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>At this point, '''hsffig''' is ready to use.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Program input ==</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Program input ==</div></td>
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BrettGiles
https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=7895&oldid=prev
BrettGiles: typo
2006-11-04T16:43:59Z
<p>typo</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:43, 4 November 2006</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It may be noted again that a Haskell application developer does not need to remember type identifiers of foreign structures involved. The compiler, using FFI import statements and the multiparameter class' functional dependencies, correctly infers all necessary type information. In fact, type of ''dbkey'' and ''dbdata'' in the example above should be ''Ptr S''_''''''_''''''_''db''_''dbt'' (as defined in the header: <tt>typedef struct __db_dbt { ... } DBT;</tt>). But this type is not mentioned explicitly in the code.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It may be noted again that a Haskell application developer does not need to remember type identifiers of foreign structures involved. The compiler, using FFI import statements and the multiparameter class' functional dependencies, correctly infers all necessary type information. In fact, type of ''dbkey'' and ''dbdata'' in the example above should be ''Ptr S''_''''''_''''''_''db''_''dbt'' (as defined in the header: <tt>typedef struct __db_dbt { ... } DBT;</tt>). But this type is not mentioned explicitly in the code.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>== Compilation of applications using bindings created with HSFFIG =</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Applications using bindings created with '''hsffig''' must be compiled/linked with the option ''-package HSFFIG'' passed to '''ghc'''. In the example below, the application consists of a single module containing the ''main'' funstion: ''main.hs'', and the '''C''' library header file is ''header.h''. The library file name is ''library.a''. </div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Applications using bindings created with '''hsffig''' must be compiled/linked with the option ''-package HSFFIG'' passed to '''ghc'''. In the example below, the application consists of a single module containing the ''main'' funstion: ''main.hs'', and the '''C''' library header file is ''header.h''. The library file name is ''library.a''. </div></td>
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BrettGiles
https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=7894&oldid=prev
BrettGiles: title levels, caps / guidelines
2006-11-04T16:42:59Z
<p>title levels, caps / guidelines</p>
<a href="https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=7894&oldid=7892">Show changes</a>
BrettGiles
https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=7892&oldid=prev
BrettGiles: Hsffig Tutorial moved to Hsffig tutorial
2006-11-04T16:34:00Z
<p>Hsffig Tutorial moved to Hsffig tutorial</p>
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BrettGiles
https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=6641&oldid=prev
DonStewart: category
2006-10-08T00:17:32Z
<p>category</p>
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DonStewart
https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=6303&oldid=prev
DimitryGolubovsky: some cleanup
2006-09-27T17:41:58Z
<p>some cleanup</p>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><<ins class="diffchange diffchange-inline">/</ins>pre></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>that is, '''hsffig''' does not deal with actual value of the constant: it is left to '''hsc2hs'''.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>that is, '''hsffig''' does not deal with actual value of the constant: it is left to '''hsc2hs'''.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>A multi-parameter class with functional dependencies is declared to enable access to structures/unions members. Because of this, Haskell-98 extensions must be enabled in the compiler processing output of '''hsffig'''. The definition of this class is placed in the ''HSFFIG.<del class="diffchange diffchange-inline">Field''''''Access</del>'' module of the Haskell library coming with the package.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>A multi-parameter class with functional dependencies is declared to enable access to structures/unions members. Because of this, Haskell-98 extensions must be enabled in the compiler processing output of '''hsffig'''. The definition of this class is placed in the ''HSFFIG.<ins class="diffchange diffchange-inline">FieldAccess</ins>'' module of the Haskell library coming with the package.</div></td>
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DimitryGolubovsky
https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=6300&oldid=prev
DimitryGolubovsky: 100% draft
2006-09-27T17:02:06Z
<p>100% draft</p>
<a href="https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=6300&oldid=6297">Show changes</a>
DimitryGolubovsky
https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=6297&oldid=prev
DimitryGolubovsky: ~70%
2006-09-27T14:30:27Z
<p>~70%</p>
<a href="https://wiki.haskell.org/index.php?title=HSFFIG/Tutorial&diff=6297&oldid=6296">Show changes</a>
DimitryGolubovsky