<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <HTML> <HEAD> <META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9"> <TITLE> {The S-lang C Library Reference}: SLclass_allocate_class</TITLE> <LINK HREF="cref-41.html" REL=next> <LINK HREF="cref-39.html" REL=previous> <LINK HREF="cref.html#toc40" REL=contents> </HEAD> <BODY> <A HREF="cref-41.html">Next</A> <A HREF="cref-39.html">Previous</A> <A HREF="cref.html#toc40">Contents</A> <HR> <H2><A NAME="SLclass_allocate_class"></A> <A NAME="s40">40. <B>SLclass_allocate_class</B></A></H2> <P> <DL> <DT><B> Synopsis </B><DD><P>Allocate a class for a new data type <DT><B> Usage </B><DD><P><CODE>SLang_Class_Type *SLclass_allocate_class (char *name)</CODE> <DT><B> Description </B><DD><P>The purpose of this function is to allocate and initialize space that defines a new data type or class called <CODE>name</CODE>. If successful, a pointer to the class is returned, or upon failure the function returns <CODE>NULL</CODE>. <P>This function does not automatically create the new data type. Callback functions must first be associated with the data type via functions such as <CODE>SLclass_set_push_function</CODE>, and the the data type must be registered with the interpreter via <CODE>SLclass_register_class</CODE>. See the <B>S-lang</B> library programmer's guide for more information. <DT><B> See Also </B><DD><P><CODE>SLclass_register_class, SLclass_set_push_function</CODE> </DL> <P> <P> <P> <HR> <A HREF="cref-41.html">Next</A> <A HREF="cref-39.html">Previous</A> <A HREF="cref.html#toc40">Contents</A> </BODY> </HTML>