ccifg

CCIFG − CUTEr tool to evaluate a single constraint function value and possibly gradient.

CALL CCIFG( N, ICON, X, CI, GCI, GRAD )

The CCIFG subroutine evaluates the value of a particular constraint function of the problem decoded into OUTSDIF.d at the point X, and possibly its gradient in the constrained minimization case.

The arguments of CCIFG are as follows

N [in] - integer

the number of variables for the problem,

ICON [in] - integer

the index of the constraint function to be evaluated,

X [in] - real/double precision

an array which gives the current estimate of the solution of the problem,

CI [out] - real/double precision

the value of constraint function ICON at X,

GCI [out] - real/double precision

an array which gives the gradient of constraint function ICON evaluated at X,

GRAD [in] - logical

a logical variable which should be set .TRUE. if the gradient of the constraint functions are required and .FALSE. otherwise.

I. Bongartz, A.R. Conn, N.I.M. Gould, D. Orban and Ph.L. Toint

CUTEr (and SifDec): A Constrained and Unconstrained Testing Environment, revisited, N.I.M. Gould, D. Orban and Ph.L. Toint, ACM TOMS, 29:4, pp.373-394, 2003.

CUTE: Constrained and Unconstrained Testing Environment, I. Bongartz, A.R. Conn, N.I.M. Gould and Ph.L. Toint, TOMS, 21:1, pp.123-160, 1995.