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Postings from June 2022
> On 10 Jun 2022, at 23:28, ToddAndMargo via perl6-users <perl6-users@perl.org> wrote: > >>> On Fri, 10 Jun 2022 at 15:49, ToddAndMargo via perl6-users <perl6-users@perl.org <mailto:perl6-users@perl.org>> wrote: >>> Hi All, >>> I am looking for an easier way to load a buffer. >>> I know about this way >>> [4] > my Buf $b=Buf.new(0x2A, 0x54, 0xFF, 0x53); >>> Buf:0x<2A 54 FF 53> >>> I would like to do it on one big blast: >>> my Buf $b=Buf.new(0x2A54FF53A5F1D36F1CEA7E61FC37A20D54A77FE7B78); >>> Cannot unbox 170 bit wide bigint into native integer >>> But do not know the proper syntax. >>> Any words of wisdom? Am I stuck with the hard way? >>> Many thanks, >>> -T > > On 6/10/22 08:36, Simon Proctor wrote: >> So Buf is expecting a list of integers. If' you've got one long one in a string like "2A54FF53A5F1D36F1CEA7E61FC37A20D54A77FE7B78" you want to split it into smaller values so something like this? >> my $hex = "2A54FF53A5F1D36F1CEA7E61FC37A20D54A77FE7B78"; >> my Buf $b=Buf.new(comb(2).map( *.parse-base(16) )); >> Which does the trick I think. > > > [0] > my $hex = "2A54FF53A5F1D36F1CEA7E61FC37A20D54A77FE7B78"; > 2A54FF53A5F1D36F1CEA7E61FC37A20D54A77FE7B78 > [1] > my Buf $b=Buf.new(comb(2).map( *.parse-base(16) )); > ===SORRY!=== Error while compiling: > Calling comb(Int) will never work with signature of the proto ($, $, $?, *%) > ------> my Buf $b=Buf.new(⏏comb(2).map( *.parse-base(16) )); > [1] > You could think: what does "comb(2)" do? Perhaps look at the documentation? And then maybe realize that Simon forgot that the comb(2) should be a method on $hex? Otherwise, how would it know what to parse? I know it is hard to think when you're in a hurry. But you should really learn to be able to read code, instead of copying examples only and not understanding *how* they work.Thread Previous | Thread Next