On 2018-12-15 20:18:44 +0100, Niels Möller wrote: > Vincent Lefevre <vinc...@vinc17.net> writes: > > > Yes, this is expected by MPFR. But since mini-gmp.c includes > > mini-gmp.h, this prevents one from redefining GMP_LIMB_BITS > > in mini-gmp.h, except by exactly the same content, which is > > not interesting. > > I'm afraid I'm missing simthing. Why would you redefine it in > mini-gmp.h? Since it's now *not* in mini-gmp.h, you can define > GMP_LIMB_BITS elsewhere in mpfr, without colliding.
This was a suggestion by Paul: ------------------------------------------------------------------ How to use mini-gmp with reduced limb size ========================================== Following the idea of Micro-GMP [1], the GMP developers have adapted mini-gmp so that it can be used with a reduced limb size. For that, you have to take a GMP snapshot from December 09, 2018, or later (see https://gmplib.org/download/snapshot/). Then edit the first line of mini-gmp.h to have for example: #include <stdint.h> typedef uint8_t mp_limb_t; #define GMP_LIMB_BITS 8 #define __GMP_SHORT_LIMB Then you can configure MPFR with that version of mini-gmp, as indicated above. ------------------------------------------------------------------ > > #ifndef GMP_LIMB_BITS > > #define GMP_LIMB_BITS (sizeof(mp_limb_t) * CHAR_BIT) > > #endif > > To be clear, are you suggesting this is added in mini-gmp.h or in > mini-gmp.c? mini-gmp.c -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon) _______________________________________________ gmp-devel mailing list gmp-devel@gmplib.org https://gmplib.org/mailman/listinfo/gmp-devel