7 #endif /* __cplusplus */
9 typedef double (*nlopt_func)(int n, const double *x,
10 double *gradient, /* NULL if not needed */
14 /* Naming conventions:
17 = global/local derivative/no-derivative optimization,
20 *_RAND algorithms involve some randomization.
22 *_NOSCAL algorithms are *not* scaled to a unit hypercube
23 (i.e. they are sensitive to the units of x)
28 NLOPT_GN_DIRECT_L_RAND,
29 NLOPT_GN_DIRECT_NOSCAL,
30 NLOPT_GN_DIRECT_L_NOSCAL,
31 NLOPT_GN_DIRECT_L_RAND_NOSCAL,
34 NLOPT_GN_ORIG_DIRECT_L,
45 NLOPT_NUM_ALGORITHMS /* not an algorithm, just the number of them */
48 extern const char *nlopt_algorithm_name(nlopt_algorithm a);
51 NLOPT_FAILURE = -1, /* generic failure code */
52 NLOPT_INVALID_ARGS = -2,
53 NLOPT_OUT_OF_MEMORY = -3,
55 NLOPT_SUCCESS = 1, /* generic success code */
56 NLOPT_MINF_MAX_REACHED = 2,
57 NLOPT_FTOL_REACHED = 3,
58 NLOPT_XTOL_REACHED = 4,
59 NLOPT_MAXEVAL_REACHED = 5,
60 NLOPT_MAXTIME_REACHED = 6
63 extern nlopt_result nlopt_minimize(
64 nlopt_algorithm algorithm,
65 int n, nlopt_func f, void *f_data,
66 const double *lb, const double *ub, /* bounds */
67 double *x, /* in: initial guess, out: minimizer */
68 double *minf, /* out: minimum */
69 double minf_max, double ftol_rel, double ftol_abs,
70 double xtol_rel, const double *xtol_abs,
71 int maxeval, double maxtime);
73 extern void nlopt_srand(unsigned long seed);
74 extern void nlopt_srand_time(void);
76 extern void nlopt_version(int *major, int *minor, int *bugfix);
78 extern void nlopt_get_local_search_algorithm(nlopt_algorithm *deriv,
79 nlopt_algorithm *nonderiv,
81 extern void nlopt_set_local_search_algorithm(nlopt_algorithm deriv,
82 nlopt_algorithm nonderiv,
87 #endif /* __cplusplus */