Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:

• delta : lbfgs_parameter_t
• epsilon : lbfgs_parameter_t
• ftol : lbfgs_parameter_t
• gtol : lbfgs_parameter_t
• linesearch : lbfgs_parameter_t
• m : lbfgs_parameter_t
• max_iterations : lbfgs_parameter_t
• max_linesearch : lbfgs_parameter_t
• max_step : lbfgs_parameter_t
• min_step : lbfgs_parameter_t
• orthantwise_c : lbfgs_parameter_t
• orthantwise_end : lbfgs_parameter_t
• orthantwise_start : lbfgs_parameter_t
• past : lbfgs_parameter_t
• wolfe : lbfgs_parameter_t
• xtol : lbfgs_parameter_t