Control Structures
These are examples of control structures. You may also be interested in:

 Conditional structures
 Exceptions
 Flow-control structures
 Loops

Task

List the conditional structures offered by a programming language. See Wikipedia: conditionals for descriptions.

Common conditional structures include if-then-else and switch.

Less common are arithmetic if, ternary operator and Hash-based conditionals.

Arithmetic if allows tight control over computed gotos, which optimizers have a hard time to figure out.



 
templates foo
  when <=0> do 'zero' -> !OUT::write
  when <..0> do
    'negative ' -> !OUT::write
    -$ -> #
  when <?($ mod 2 <=0>)> do 'even' -> !OUT::write
  otherwise 'odd' -> !OUT::write
end foo
 