OPL CPLEX Syntax Problem with Array of Tuple

Question

This is .mod (model file)

tuple TDayPair{
  string day1;
  string day2;
}

{TDayPair} DAYS={<"Mon","Tue">,<"Thurs","Fri">};
int a[DAYS]= ...;
execute {
  writeln(a[<"Mon","Tue">]); //<--it gives syntax error here
}

This is .dat (data file)

a = #[
  <"Mon","Tue">:1,
  <"Thurs","Fri">:2,
]#;

It gives syntax error at the model file at writeln(a[<"Mon","Tue">]); what's the issue here?

score 2 · Accepted Answer · answered Jun 24 '22 at 13:46

If you write

tuple TDayPair{
  string day1;
  string day2;
}

{TDayPair} DAYS={<"Mon","Tue">,<"Thurs","Fri">};
int a[DAYS]= ...;
execute {
  writeln(a[DAYS.find("Mon","Tue")]); //<--it gives syntax error here
}

You will get

OPL Modeling language is not the same as the OPL Javascript language that helps with preprocessing, postprocessing and flow control.

OPL CPLEX Syntax Problem with Array of Tuple

1 Answers1