is the options structure initialization function for the H Chapter Introduction
. This function or h02xyc
must be called before making any use of the options structure.
The integer programming (IP) functions of the H Chapter Introduction
have a number of optional parameters, which are set by means of a structure of type Nag_H02_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 h02xyc
If optional parameter values are assigned directly in the program text and no use is made of h02xyc
, then h02xxc 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 IP function.
If the file reading function h02xyc
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 h02xyc
be preceded by a call to h02xxc
otherwise the values set by h02xyc
will be lost. Direct assignments to the options structure made before
must, of course, still be preceded by a call to h02xxc