Initializing help system before first use

XPRBsetctrtype

XPRBsetctrtype

Purpose
Set the constraint type.
Synopsis
int XPRBsetctrtype(XPRBctr ctr, int qrtype);
Arguments
ctr 
Reference to a previously created constraint.
qrtype 
The constraint type, which must be one of:
XPRB_L 
'less than or equal to' constraint;
XPRB_G 
'greater than or equal to' constraint;
XPRB_E 
an equality;
XPRB_N 
a non-binding row (objective function).
Return value
0 if function executed successfully, 1 otherwise.
Example 
XPRBprob prob;
XPRBctr ctr1;
   ...
ctr1 = XPRBnewctr(prob, "r1", XPRB_E);
XPRBsetctrtype(ctr1, XPRB_L);
This changes ctr1 to a `less than or equal to' constraint.
Further information
This function changes the type of a previously defined constraint to inequality, equation or non-binding. Function XPRBsetrange has to be used for changing the constraint to a ranged constraint. If a ranged constraint is changed back to some other type with this function, its upper bound becomes the right hand side value.
Related topics
XPRBgetctrtype, XPRBnewctr, XPRBsetrange, XPRBsetterm.

Parent Topic BCL C library functions

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