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ConstrainedOptPack_DirectLineSearchArmQuad_StrategySetOptions.cpp
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41 
42 #include <assert.h>
43 
46 
47 // Define the options
48 namespace {
49 
50  const int local_num_options = 5;
51 
53  SLOPE_FRAC,
54  MIN_FRAC_STEP,
55  MAX_FRAC_STEP,
56  MAX_LS_ITER,
57  MAX_OUT_LS_ITER
58  };
59 
60  const char* local_SOptions[local_num_options] = {
61  "slope_frac",
62  "min_frac_step",
63  "max_frac_step",
64  "max_ls_iter",
65  "max_out_ls_iter"
66  };
67 
68 }
69 
70 namespace ConstrainedOptPack {
71 
74  , const char opt_grp_name[] )
75  : OptionsFromStreamPack::SetOptionsFromStreamNode(
76  opt_grp_name, local_num_options, local_SOptions )
77  , OptionsFromStreamPack::SetOptionsToTargetBase<
79 {}
80 
82  int option_num, const std::string& option_value )
83 {
85  switch( (local_EOptions)option_num ) {
86  case SLOPE_FRAC: {
87  target().eta( std::atof( option_value.c_str() ) );
88  break;
89  }
90  case MIN_FRAC_STEP: {
91  target().min_frac( std::atof( option_value.c_str() ) );
92  break;
93  }
94  case MAX_FRAC_STEP: {
95  target().max_frac( std::atof( option_value.c_str() ) );
96  break;
97  }
98  case MAX_LS_ITER: {
99  target().set_max_iter( std::atof( option_value.c_str() ) );
100  break;
101  }
102  case MAX_OUT_LS_ITER: {
103  target().max_out_iter( StringToBool( "max_out_ls_iter", option_value.c_str() ) );
104  break;
105  }
106  default:
107  TEUCHOS_TEST_FOR_EXCEPT(true); // Local error only?
108  }
109 }
110 
111 } // end namespace ConstrainedOptPack
bool StringToBool(const char *opt_name, const char *str)
Convert a string "true" or "false" into bool #true# or #false#.
DirectLineSearchArmQuad_StrategySetOptions(DirectLineSearchArmQuad_Strategy *qp_solver=0, const char opt_grp_name[]="DirectLineSearchArmQuad")
Performs a line search using the Armijo condition and uses quadratic interpolation to select each new...
void setOption(int option_num, const std::string &option_value)
Overridden from SetOptionsFromStreamNode.
#define TEUCHOS_TEST_FOR_EXCEPT(throw_exception_test)
const std::string & option_value(OptionsGroup::const_iterator &itr)