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Manuel Scilab >> Scilab > newfun


add a name in the table of functions

Calling Sequence

newfun(function_name, function_ptr)



A character string, giving a valid variable name.


a positive number with integer value (see below).


Utility function (for experts only).

Adds the name function_name in the table of functions known to the interpreter.

function_ptr is an integer 1000*fun+fin where fun and fin is the internal coding of the primitive function_name.

This function may be useful to associate a primitive to a gateway called in "gw_user.c" (fun=14). Note however that the ilib_build function is a more easy way to extend Scilab with new functions based on C C++ or Fortran code.

This function may also be used to add an alias or to rename to an existing primitive function.

Used with funptr and clearfun one can add an alias or rename an existing primitive function.


absptr=funptr("abs");// get the function_ptr associated with the abs function
newfun("abs_bis",absptr) // create an alias of the abs function
clearfun("abs") // remove abs as a known function
function y=abs(x),y=abs_bis(real(x)),endfunction //redefine abs
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Last updated:
Wed Jan 26 16:24:00 CET 2011