e04xxc is the options structure initialization function for
Chapter E04. This function or
e04xyc must be called before using the options structure.
The optimization functions of
Chapter E04 have a number of optional parameters, which are set by means of a structure of type Nag_E04_Opt. Optional parameter values may be assigned to members of an options structure directly in the program text and/or by supplying the optional values in a file which can be read by the function
e04xyc.
If optional parameter values are assigned directly in the program text and no use is made of
e04xyc, then
e04xxc must be called before any assignments are made to the options structure. Initialization is still required even if no assignments are made to the structure before it is passed to the optimization function.
If the file reading function
e04xyc is used then this will automatically initialize the options structure if this has not already been done. Any direct assignment to the options structure made
after a call to
e04xyc must
not be preceded by a call to
e04xxc otherwise the values set by
e04xyc will be lost. Direct assignments to the options structure made
before calling
e04xyc must, of course, still be preceded by a call to
e04xxc.
None.
None.
Not applicable.
Background information to multithreading can be found in the
Multithreading documentation.
None.