throw

throw object

Throws an exception with the given object. If the exception is not caught, the script is terminated and the object is printed through the output channel.

try { .... } catch(object) { .... }

Catches exceptions with the given object type that occur between the try { ... } brackets. When ... is given for the object type, all remaining exception types are caught.

Example:

try {
  if (i == 0)
    throw 1;
  if (i == 2)
    throw "Error";
}
catch(int a)
{
  print(message("Exception %x%!") << a);
}
catch(string s)
{
  print(s);
}

See also:

► latest version online