On Monday, January 14, 2013 4:44:44 PM UTC-5, Cactus wrote: > On Monday, 14 January 2013 18:37:16 UTC, MJ Michaels wrote: > Is it possible to configure the VC10 build in MPIR 2.6.0 to generate 64-bit > limbs? I am able to do this, but have to edit mpir.h by hand to get it to > work, and I'm wondering if there's just some build option that I'm missing. > I basically just remove references to "#ifdef _WIN64". Is there a reason why > this is a bad idea? > Thanks in advance. > Mj Michaels > > > Unfortunately there is no standard Visual Studio build that does what you > want. As you found, MPIR on Windows is set up to use 32-bit limbs on win32 > and 64-bit limbs on x64. > > > Using 64-bit limbs on win32 is likely to work for the generic C version of > MPIR but it will fail for all the assembler based builds since all the x86 > assembler code assumes that limbs are 32-bits. > > > So its certainly not a good idea unless you limit yourself to the generic C > build. And here, of course, you are on your own since it is not a tested > configuration. > > > Brian
Thanks for the answer Brian. My problem is that I have code on all other platforms that passes an int64 to mpz_set_ui(), but on Windows this doesn't work. I could fix this by turning the int64 into two int32's and calling mpz_set_ui() appropriately with those values. Or I can use the generic C build with 64-bit limbs. Do you have thoughts about which is the better approach? Thanks. Mj -- You received this message because you are subscribed to the Google Groups "mpir-devel" group. To view this discussion on the web visit https://groups.google.com/d/msg/mpir-devel/-/l5B7gnmpgQQJ. To post to this group, send email to mpir-devel@googlegroups.com. To unsubscribe from this group, send email to mpir-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/mpir-devel?hl=en.
