On Jul 15, 2010, at 8:58 AM, Jürgen Werner wrote:
When using the GN_MLSL algorithm and passing a pointer to a class as
f_data in
void nlopt::opt::set_min_objective(nlopt::vfunc f, void* f_data)
I receive the following error at program execution:
Unhandled exception at 0xffffffff in test_mlsl.exe: 0xC0000005:
Access violation reading location 0xffffffff.
Call Stack:
test_mlsl.exe!nlopt::opt::free_myfunc_data(void * p=0x7c840c5b)
Line 157 + 0x23 bytes C++
Jurgen, thanks for the bug report; I can reproduce your problem on Unix.
I believe that this problem is fixed by the following patch to api/
options.c:
--- old-nlopt_0/api/options.c 2010-07-15 12:10:41.000000000 -0400
+++ new-nlopt_0/api/options.c 2010-07-15 12:10:41.000000000 -0400
@@ -576,6 +576,7 @@
nlopt_remove_inequality_constraints(opt->local_opt);
nlopt_remove_equality_constraints(opt->local_opt);
nlopt_set_min_objective(opt->local_opt, NULL, NULL);
+ nlopt_set_munge(opt->local_opt, NULL, NULL);
opt->local_opt->force_stop = 0;
}
return NLOPT_SUCCESS;
This will be in the next release of NLopt, in a day or two.
Steven
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