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Postings from July 2013
Father Chrysostomos via RT wrote: >If $a+$b returns a value, not a variable, then we could say that \ and >for(...) and func(...) impose "variable context". The usual term for this is "lvalue context". A variable (that can vary) is an lvalue. A read-only scalar is also an lvalue. It is instructive to compare against C. The C equivalent of Perl's \ operator is &. C's & operator requires that the operand be an lvalue (but not necessarily mutable), and it is a compile-time error to apply it to a non-lvalue. Perl's pass-by-reference semantics would conflict with any attempt to prevent enreferencement of non-lvalues. Are you going to document \'s variable-generating semantics? -zeframThread Previous | Thread Next