g02zkc either initializes or resets the optional parameter arrays or sets a single optional parameter for supported problem solving functions in
Chapter G02. Currently, only
g02qgc is supported.
Optional parameters and their values are, in general, presented as a character string,
optstr, of the form ‘
option ’; alphabetic characters can be supplied in either upper or lower case. Both
option and
may consist of one or more tokens separated by white space. The tokens that comprise
will normally be either an integer, real or character value as defined in the description of the specific optional argument. In addition all optional parameters can take an
DEFAULT which resets the optional parameter to its default value.
It is imperative that optional parameter arrays are initialized before any options are set, before the relevant problem solving function is called and before any options are queried using
g02zlc. To initialize the optional parameter arrays
iopts and
opts for a specific problem solving function, the option
Initialize is used with
identifying the problem solving function to be called. For example, to initialize optional parameter arrays to be passed to
g02qgc,
g02zkc is called as follows:
Information relating to available option names and their corresponding valid values is given in
Section 12 in
g02qgc.
None.
- NE_ALLOC_FAIL
-
Dynamic memory allocation failed.
See
Section 3.1.2 in the Introduction to the NAG Library CL Interface for further information.
- NE_BAD_PARAM
-
On entry, argument had an illegal value.
- NE_INT
-
On entry, .
Constraint: .
On entry, .
Constraint: .
- NE_INTERNAL_ERROR
-
An internal error has occurred in this function. Check the function call and any array sizes. If the call is correct then please contact
NAG for assistance.
See
Section 7.5 in the Introduction to the NAG Library CL Interface for further information.
- NE_INVALID_FORMAT
-
On entry, could not convert the specified optval to an integer: .
On entry, could not convert the specified optval to a real: .
On entry, the expected delimiter ‘
’ was not found in
optstr:
.
- NE_INVALID_OPTION
-
On entry, either the option arrays have not been initialized or they have been corrupted.
On entry, the
option supplied in
optstr was not recognized:
.
- NE_INVALID_VALUE
-
On entry, the optval supplied for the character optional parameter is not valid.
.
On entry, the optval supplied for the integer optional parameter is not valid.
.
On entry, the optval supplied for the real optional parameter is not valid.
.
- NE_NO_LICENCE
-
Your licence key may have expired or may not have been installed correctly.
See
Section 8 in the Introduction to the NAG Library CL Interface for further information.
- NE_NOT_FUN_NAME
-
On entry, attempting to initialize the optional parameter arrays but specified function name was not valid: .
Not applicable.
Not applicable.
See the example programs associated with the problem solving function you wish to use for a demonstration of how to use g02zkc to initialize option arrays and set options.