Initializing help system before first use

eval

Purpose
Evaluate a constraint or objective on the provided assignment of the decision variables.
Synopsis
int eval(XPRMcontext ctx, XPRMnlpdata nlpdata, int nb, const double *x, double *val);
Arguments
ctx 
Mosel's execution context
nlpd 
Problem information as generated by loadprob
nb 
Constraint number to evaluate or NLEVAL_OBJ for the objective, NLEVAL_ALL for everything, NLEVAL_NL for nonlinear constraints or NLEVAL_LIN linear constraints.
x 
Values assigned to the decision variables
val 
Reference that receives the result of the evaluation. In case of multiple evaluations, this must be an array large enough to store all the results
Return value
0 if successful or 1 in case of error
Further information
When the function is called with NLEVAL_ALL the array val must be of size nlpdata->nbctr, with NLEVAL_NL it requires nlpdata->nbnlctr entries and for NLEVAL_LIN it contains nlpdata->nbctr-nlpdata->nbnlctr values.

Parent Topic NI library interface functions of mmnl

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