NAG FL Interface
h02cdf (iqp_​dense_​optstr)

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1 Purpose

h02cdf may be used to supply individual optional parameters to h02cbf.

2 Specification

Fortran Interface
Subroutine h02cdf ( str)
Character (*), Intent (In) :: str
C Header Interface
#include <nag.h>
void  h02cdf_ (const char *str, const Charlen length_str)
The routine may be called by the names h02cdf or nagf_mip_iqp_dense_optstr.

3 Description

h02cdf may be used to supply values for optional parameters to h02cbf. It is only necessary to call h02cdf for those arguments whose values are to be different from their default values. One call to h02cdf sets one argument value.
Each optional parameter is defined by a single character string of up to 72 characters, consisting of one or more items. The items associated with a given option must be separated by spaces, or equal signs [=]. Alphabetic characters may be upper or lower case. The string
Print level = 1
is an example of a string used to set an optional parameter. For each option the string contains one or more of the following items:
Blank strings and comments are ignored. A comment begins with an asterisk (*) and all subsequent characters in the string are regarded as part of the comment.
Normally, each user-specified option is printed as it is defined, on the current advisory message unit (see x04abf), but this printing may be suppressed using the keyword Nolist. Thus the statement
Call h02cdf ('Nolist')
suppresses printing of this and subsequent options. Printing will automatically be turned on again after a call to h02cbf, and may be turned on again at any time by you, by using the keyword List.
Optional parameter settings are preserved following a call to h02cbf, and so the keyword Defaults is provided to allow you to reset all the optional parameters to their default values by the statement,
Call h02cdf ('Defaults')
prior to a subsequent call to h02cbf .
A complete list of optional parameters, their abbreviations, synonyms and default values is given in Section 12 in h02cbf.

4 References


5 Arguments

1: str Character(*) Input
On entry: a single valid option string (as described in Section 3 above and in Section 12 in h02cbf).

6 Error Indicators and Warnings

If a line is not recognized as a valid option, then a warning message is output on the current advisory message unit (see x04abf).

7 Accuracy

Not applicable.

8 Parallelism and Performance

Background information to multithreading can be found in the Multithreading documentation.
h02cdf is not thread safe and should not be called from a multithreaded user program. Please see Section 1 in FL Interface Multithreading for more information on thread safety.
h02cdf is not threaded in any implementation.

9 Further Comments

h02ccf may also be used to supply optional parameters to h02cbf. Note that if e04nff/​e04nfa is used in the same program as h02cbf, then in general h02ccf will also affect the options used by e04nff/​e04nfa.

10 Example

See h02ccf.