Sets if variable or constraint names are used.
void set_use_names(lprec *lp, unsigned char isrow, unsigned char use_names);
set_use_names has no return value.
Set to FALSE (0) if column information is needed and TRUE (1) if row information is needed.
If FALSE (0), then names are not used, else they are.
When a model is read from file or created via the API, variables and constraints can be named.
These names are used to report information or to save the model in a given format.
However, sometimes it is required to ignore these names and to use the internal names of lp_solve.
This is for example the case when the names do not comply to the syntax rules of the format that
will be used to write the model to.