Certainly. The unfortunately named wantarray function can tell you:

Returns true if the context of the currently executing subroutine or eval() block is looking for a list value. Returns false if the context is looking for a scalar. Returns the undefined value if the context is looking for no value (void context).

In reply to Re: How much can a function know about the context in which it is called? by friedo
in thread How much can a function know about the context in which it is called? by jacques

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