David Fetter wrote:
On Tue, Jul 12, 2005 at 03:45:55PM -0400, Andrew Dunstan wrote:
In perl, if there is any ambiguity it is the called function that is
responsible for checking, not the caller. See "perldoc -f
wantarray". PLPerl explicitly passed G_SCALAR as a flag on all
calls to plperl routines. So returning a list is a case of pilot
error.
Is this a kind of pilot error that documents could help avert in some
useful way?
Sure. "A plperl function must always return a scalar value.More complex
structures (arrays, records, and sets) can be returned in the
appropriate context by returning a reference. A list should never be
returned." Salt to taste and insert where appropriate.
cheers
andrew
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