Let's say we have a chain of functions.
I would like to have a behaviour in
a() that would check if there is
c() chained to it.
a();is not chained: do a
writeln("You forgot to chain this function!");
A function that executes a program
For me syntactically it is important. One real world application would be:
Executes and pipes output to another program.
program(); - Only executes the program.