Re: [Gretl-devel] problem with pointerized bundle member

On Tue, 13 Oct 2015, Sven Schreiber wrote: > Am 29.09.2015 um 20:32 schrieb Sven Schreiber: >> Am 29.09.2015 um 18:48 schrieb Allin Cottrell: >> > >>> (2) When a matrix is used as an argument to a user-defined function, >>> there are two ways to ensure it is "passed along" to the function >>> rather >>> than being copied: give the argument in "pointer" form, or >>> mark the argument as "const". >>>

> A follow-up on this: I just noticed that example 13.1 in the manual > has this function header: > > "function scalar b(const matrix *X)" > > From what you explained here, the pointer form in this example would > be redundant, right? Right. That example may have predated the modification whereby "const" (for pointer-y objects such as matrices) implied pass by reference.