Initializing help system before first use

# XPRSaddnames

Purpose
When a model is loaded, the rows, columns, sets, piecewise linear and general constraints of the model may not have names associated with them. This may not be important as the rows, columns, sets, piecewise linear and general constraints can be referred to by their sequence numbers. However, if you wish row, column, set, piecewise linear and general constraint names to appear in the ASCII solutions files, the names for a range of rows/columns/... can be added with XPRSaddnames.
Topic area
Problem Creation
Synopsis
`int XPRS_CC XPRSaddnames(XPRSprob prob, int type, const char names[], int first, int last);`
Arguments

prob | The current problem.
type |
XPRS_NAMES_ROW | (=1) for row names;
XPRS_NAMES_COLUMN | (=2) for column names;
XPRS_NAMES_SET | (=3) for set names;
XPRS_NAMES_PWLCONS | (=4) for piecewise linear constraint names;
XPRS_NAMES_GENCONS | (=5) for general constraint names;
XPRS_NAMES_OBJECTIVE | (=6) for objective names.
names | Character buffer containing the null-terminated string names. The length of an individual name (including the terminating NUL) must not exceed 1MB.
first | Start of the range of rows, columns, sets, piecewise linear constraints, general constraints or objectives.
last | End of the range of rows, columns, sets, piecewise linear constraints, general constraints or objectives.

Example
Add variable names ( a and b), and constraint names ( first, second, and third) to a problem:

    char rnames[] = "first\0second\0third"
    char cnames[] = "a\0b";
    ...
    XPRSaddnames(prob,XPRS_NAMES_ROW,rnames,0,nrow-1);
    XPRSaddnames(prob,XPRS_NAMES_COLUMN,cnames,0,ncol-1);

See also examples ComplexUserFunctions.c, els_managedcuts.c, els_usercuts.c, loadlp.c, Polygon_initialvalue.c, Polygon_textformula.c, Polygon_tokens.c, Polygon_userfunc.c, Polygon_userfunc_map.c, Polygon_userfunc_mapdelta.c, Polygon_userfunc_multimap.c, Polygon_userfunc_multimapdelta.c, Polygon_userfunc_vecmap.c, Polygon_userfunc_vecmapdelta.c, trimloss.c, tsp.c.
Further information
This function cannot be called while the current problem is being solved or when it is in an interrupted state. Use XPRSpostsolve to restore the problem to a non-solving state.
Related topics
XPRSaddcols, XPRSaddrows, XPRSgetnamelist.
Parent Topic Console and Library Functions

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