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Scope/Function names and labels: Difference between revisions
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The task is to explain or demonstrate the levels of visibility of function names and labels within the language.
For levels of scope relating to visibility of variables see [[Variables]].
For scope modification facilities see [[Scope modifiers]].
{{
In [awk] function names are always global and can be referenced in sections of code appearing before the definition:
<lang awk># This program outputs a greeting
BEGIN {
sayhello() # Call the function defined below
exit
}
function sayhello {
print "Hello World!" # Outputs a message to the terminal
}</lang>
Note that the awk extraction and reporting language is data driven and does not support arbitary line labels.
{{omit from|GUISS|does not have functions or labels}}
[[Category:Scope]]
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