Enum DifferentiabilityMode

include/cppoptlib/function_base.h:42–46

----------------------------------------------------------------- Differentiability enum.

//-----------------------------------------------------------------
// Differentiability enum.
enum class DifferentiabilityMode {
  None = 0,   // Only function evaluation.
  First = 1,  // Evaluation and gradient available.
  Second = 2  // Evaluation, gradient, and Hessian available.
};

//-----------------------------------------------------------------
// Unified Function Interface templated on scalar type and differentiability.