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diff --git a/help/en_US/scilab2c_functions_annotations.xml b/help/en_US/scilab2c_functions_annotations.xml new file mode 100644 index 00000000..15a4d97a --- /dev/null +++ b/help/en_US/scilab2c_functions_annotations.xml @@ -0,0 +1,121 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!-- + * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab + * Copyright (C) DIGITEO - Bruno JOFRET + * + * This file is released into the public domain + * + --> +<refentry version="5.0-subset Scilab" xml:id="scilab2c_functions_annotations" xml:lang="en" + xmlns="http://docbook.org/ns/docbook" + xmlns:xlink="http://www.w3.org/1999/xlink" + xmlns:svg="http://www.w3.org/2000/svg" + xmlns:ns3="http://www.w3.org/1999/xhtml" + xmlns:mml="http://www.w3.org/1998/Math/MathML" + xmlns:db="http://docbook.org/ns/docbook"> + <info> + <pubdate>$LastChangedDate$</pubdate> + </info> + + <refnamediv> + <refname>Scilab2C Functions Annotations</refname> + + <refpurpose>Scilab to C Converter : Functions Annotations How To</refpurpose> + </refnamediv> + + <refsection> + <title>Description</title> + <para> + The annotation of every Scilab function is mandatory. Only the main function of the Scilab program you are translating doesn’t need any annotation. + </para> + <para> + The main function can not return any output argument and can not accept any input argument. + </para> + <para> + It is important to specify for each output argument of the Scilab function, its size and type in order to have the possibility to allocate the correct memory space at translation time. + When the size of the returned output can be estimated only at run time, as happens for find-like functions that return an output whose size is related to the condition tested by the function, + the user must be able to specify at least the maximum size that can be returned by the function. + If it is not possible then the function should dynamically allocate memory and so can not be translated by Sci2C. + </para> + <para> + Function annotation must specify: + <itemizedlist> + <listitem>the number of input arguments. (See <link linkend="scilab2c_tag_NIN">NIN tag</link>)</listitem> + <listitem>the number of output arguments. (See <link linkend="scilab2c_tag_NOUT">NOUT tag</link>)</listitem> + <listitem>the type and precision of each output argument. (See <link linkend="scilab2c_tag_TP">TP tag</link>)</listitem> + <listitem>the size of every output argument. (See <link linkend="scilab2c_tag_SZ">SZ tag</link>)</listitem> + <listitem>the default precision for the data declared in the function body.</listitem> + </itemizedlist> + </para> + </refsection> + + <refsection> + <title>Simple Example</title> + <programlisting role="example"><![CDATA[ +//SCI2C: NIN= 1 +//SCI2C: NOUT= 2 +//SCI2C: OUT(1).TP= IN(1).TP +//SCI2C: OUT(1).SZ(1)= IN(1).SZ(1) +//SCI2C: OUT(1).SZ(2)= IN(1).SZ(2) +//SCI2C: OUT(2).TP= IN(1).TP +//SCI2C: OUT(2).SZ(1)= IN(1).SZ(1) +//SCI2C: OUT(2).SZ(2)= IN(1).SZ(2) +//SCI2C: DEFAULT_PRECISION= DOUBLE +]]></programlisting> + This will declare a function with the following informations: + <itemizedlist> + <listitem>1 input argument.</listitem> + <listitem>2 output arguments.</listitem> + <listitem>first output argument has the same type than first input argument.</listitem> + <listitem>first output argument has the same width than first input argument.</listitem> + <listitem>first output argument has the same height than first input argument.</listitem> + <listitem>second output argument has the same type than first input argument.</listitem> + <listitem>second output argument has the same width than first input argument.</listitem> + <listitem>second output argument has the same height than first input argument.</listitem> + </itemizedlist> + </refsection> + + <refsection> + <title>Simple Example</title> + <programlisting role="example"><![CDATA[ +NIN= 2 +NOUT= 2 +OUT(1).TP= IN(1).TP +OUT(1).SZ(1)= '1' +OUT(1).SZ(2)= FA_MUL(IN(1).SZ(1),IN(1).SZ(2)) +OUT(2).TP= IN(1).TP +OUT(2).SZ(1)= '1' +OUT(2).SZ(2)= FA_MUL(IN(1).SZ(1),IN(1).SZ(2)) +]]></programlisting> + This will declare a function with the following informations: + <itemizedlist> + <listitem>2 input arguments.</listitem> + <listitem>2 output arguments.</listitem> + <listitem>first output argument has the same type than first input argument.</listitem> + <listitem>first output argument is a row vetor.</listitem> + <listitem>first output argument's height is the product of the first input width by height.</listitem> + <listitem>second output argument has the same type than first input argument.</listitem> + <listitem>second output argument is a row vector.</listitem> + <listitem>second output argument's height is the product of the first input width by height.</listitem> + </itemizedlist> + </refsection> + <refsection> + <title>See Also</title> + <simplelist type="inline"> + <member> + <link linkend="scilab2c_annotations">Sciab2C Annotations</link>, + <link linkend="scilab2c">Scilab2C Code Generator</link> + </member> + </simplelist> + </refsection> + + + + <refsection> + <title>Authors</title> + <simplelist type="vert"> + <member>Bruno JOFRET</member> + <member>Raffaele NUTRICATO</member> + </simplelist> + </refsection> +</refentry> |