Initializing help system before first use

XSLPadduserfunction, XPRSnlpadduserfunction

Purpose
Add user function definitions to an SLP problem.
Synopsis
int XPRS_CC XSLPadduserfunction(XSLPprob prob, const char * funcname, int functype, int nin, int nout, int options, XPRSfunctionptr function,void * data, int * p_type);
Arguments
prob 
The current SLP problem.
funcname 
The name of the function as it appears in text formula expressions.
functype 
The type of the user function, one of
1 (XSLP_USERFUNCTION_MAP) 
function takes double, returns double.
2 (XSLP_USERFUNCTION_VECMAP) 
function takes double array, returns double.
3 (XSLP_USERFUNCTION_MULTIMAP) 
function takes double array, returns double array.
4 (XSLP_USERFUNCTION_MAPDELTA) 
function takes double, returns double and delta.
5 (XSLP_USERFUNCTION_VECMAPDELTA) 
function takes double array, returns double and deltas.
6 (XSLP_USERFUNCTION_MULTIMAPDELTA) 
function takes double array, returns double array and deltas.
nin 
Number of arguments the user function takes.
nout 
Number of return arguments for the function.
options 
options as a bitmap to the user function
XSLP_INSTANCEFUNCTION 
always instantiate the function.
function 
Pointer of the user function to call.
data 
Context pointer to provide the user function with.
p_type 
The token id of the user function added, to be used in the Value array when defining formulas and using with XSLP_FUN.
Further information

The type XPRSfunctionptr is a generic function pointer.

The function declarations expected for the user functions are defined by the functype argument.

The function of type XSLP_USERFUNCTION_MAP expects a function in the form of 'double XPRS_CC F(double Value, void *Context)'.

The function of type XSLP_USERFUNCTION_VECMAP expects a function in the form of 'double XPRS_CC F(double *Value, void *Context)'.

The function of type XSLP_USERFUNCTION_MULTIMAP expects a function in the form of 'int XPRS_CC F(double *Value, double *Out, void *Context)'.

The function of type XSLP_USERFUNCTION_MAPDELTA expects a function in the form of 'int XPRS_CC F(double Value, double Delta, double *Evaluation, double *Partial, void *Context)'.

The function of type XSLP_USERFUNCTION_VECMAPDELTA expects a function in the form of 'int XPRS_CC F(double *Value, double *Deltas, double *Evaluation, double *Partials, void *Context)'.

The function of type XSLP_USERFUNCTION_MULTIMAPDELTA expects a function in the form of 'int XPRS_CC F(double *Value, double *Deltas, double *Out, void *Context)'.


Related topics
User functions, XSLPdeluserfunction, XSLPimportlibfunc

Parent Topic Library functions

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