sec_control_type structure

    struct sec_control_type{T}
      f_indexing::Bool
      error::Int32
      out::Int32
      print_level::Int32
      h_initial::T
      update_skip_tol::T
      prefix::NTuple{31,Cchar}

detailed documentation

control derived type as a Julia structure

components

Bool f_indexing

use C or Fortran sparse matrix indexing

Int32 error

error and warning diagnostics occur on stream error

Int32 out

general output occurs on stream out

Int32 print_level

the level of output required. <= 0 gives no output, >= 1 warning message

T h_initial

the initial Hessian approximation will be h_initial \* \(I\)

T update_skip_tol

an update is skipped if the resulting matrix would have grown too much; specifically it is skipped when y^T s / y^T y <= update_skip_tol.

NTuple{31,Cchar} prefix

all output lines will be prefixed by .prefix(2:LEN(TRIM(.prefix))-1) where .prefix contains the required string enclosed in quotes, e.g. “string” or ‘string’