yes under the WTF directory Il giorno gio 27 set 2018 alle ore 22:55 J Decker <d3c...@gmail.com> ha scritto:
> > > On Thu, Sep 27, 2018 at 10:50 AM dan Med <litokis.ta...@gmail.com> wrote: > >> When v8 calls the arraybufferappend method ? >> > ARRAYBUFFERAPPEND IS NOT DEFINED IN V8 IT IS NEVER CALLED. > > >> >> Il giorno mar 4 set 2018 alle ore 12:12 Graham Reeves < >> gra...@grahamreeves.com> ha scritto: >> >>> memcpy is this >>> memcpy( writable_destination, const_source, length_in_bytes ) >>> >>> if you're unsure what it's doing, expand the arguments so the code is >>> more readable (shame on whoever wrote this :) >>> memcpy(static_cast<char*>(buffer_->Data()) + bytes_used_, >>> data,bytes_to_save); >>> ... >>> auto* Destination = static_cast<char*>(buffer_->Data()); // start of >>> buffer >>> Destination += bytes_used_; // offset from the start, same as >>> Destination = &Destination[bytes_used_]; >>> memcpy(Destination, data, bytes_to_save ); >>> >>> So to answer your question; >>> >>> > with this memcpy is it copying from data which is a const char pointer >>> n bytes_to_save into the array buffer_ >>> No, it's copying the number of bytes *bytes_to_save* FROM *data* (from >>> the start) >>> >>> > into a specific offset from the array >>> yes, into a specific offset from the start of the array *Buffer->Data* >>> >>> This isn't a v8 specific question, so you may get a better response for >>> general C/++ questions on http://www.stackoverflow.com :) >>> >>> >>> On Monday, 3 September 2018 19:55:35 UTC+1, dan Med wrote: >>>> >>>> Can someone help me out ? >>>> >>>> Il giorno dom 2 set 2018 alle ore 11:26 <litoki...@gmail.com> ha >>>> scritto: >>>> >>>>> memcpy(static_cast<char*>(buffer_->Data()) + bytes_used_, >>>>> data,bytes_to_save); >>>>> >>>>> with this memcpy is it copying from data which is a const char pointer >>>>> n bytes_to_save into the array buffer_ or into a specific offset from the >>>>> array ? >>>>> >>>>> -- >>>>> -- >>>>> v8-users mailing list >>>>> v8-u...@googlegroups.com >>>>> http://groups.google.com/group/v8-users >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "v8-users" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to v8-users+u...@googlegroups.com. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> -- >>> -- >>> v8-users mailing list >>> v8-users@googlegroups.com >>> http://groups.google.com/group/v8-users >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "v8-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to v8-users+unsubscr...@googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- >> -- >> v8-users mailing list >> v8-users@googlegroups.com >> http://groups.google.com/group/v8-users >> --- >> You received this message because you are subscribed to the Google Groups >> "v8-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to v8-users+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> > -- > -- > v8-users mailing list > v8-users@googlegroups.com > http://groups.google.com/group/v8-users > --- > You received this message because you are subscribed to the Google Groups > "v8-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to v8-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
