int sym_set_continuous(sym_environment *env, int index)
This routine is used to set the type of a variable to be integer.
|sym_environment *env||INOUT||Pointer to the SYMPHONY environment.|
|int index||IN||The index of the variable to be modified. Note that, it has to be at most the number of columns.|
|FUNCTION_TERMINATED_NORMALLY||Function invoked successfully.|
|FUNCTION_TERMINATED_ABNORMALLY||Function invoked unsuccessfully.|