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XPRSgetdirs

XPRSgetdirs

Purpose
Used to return the directives that have been loaded into a matrix. Priorities, forced branching directions and pseudo costs can be returned. If called after presolve, XPRSgetdirs will get the directives for the presolved problem.
Synopsis
int XPRS_CC XPRSgetdirs(XPRSprob prob, int *ndir, int mcols[], int mpri[], char qbr[], double dupc[], double ddpc[]);
Arguments
prob 
The current problem.
ndir 
Pointer to an integer where the number of directives will be returned.
mcols 
Integer array of length ndir containing the column numbers ( 0, 1, 2,...) or negative values corresponding to special ordered sets (the first set numbered -1, the second numbered -2,...). May be NULL if not required.
mpri 
Integer array of length ndir containing the priorities for the columns and sets, where columns/sets with smallest priority will be branched on first. May be NULL if not required.
qbr 
Character array of length ndir specifying the branching direction for each column or set:
U 
the entity is to be forced up;
D 
the entity is to be forced down;
N 
not specified.
dupc 
Double array of length ndir containing the up pseudo costs for the columns and sets. May be NULL if not required.
ddpc 
Double array of length ndir containing the down pseudo costs for the columns and sets. May be NULL if not required.
Further information
The value ndir denotes the number of directives, at most MIPENTS, obtainable with XPRSgetintattrib(prob,XPRS_MIPENTS,& mipents);.
Related topics
XPRSloaddirs, XPRSloadpresolvedirs.

Parent Topic Console and Library Functions

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