int sym_is_integer(sym_environment *env, int index, int *value)
This routine is used to ask whether the queried variable is integer.
|sym_environment *env||IN||Pointer to the SYMPHONY environment.|
|int index||IN||Index of the queried variable. Note that, it has to be at most the number of columns.|
|int *value||OUT||Pointer to a boolean indicating the variable status.|
|FUNCTION_TERMINATED_ABNORMALLY||Function invoked unsuccessfully.|
|FUNCTION_TERMINATED_NORMALLY||Function invoked successfully.|