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Merge pull request #116 from libtom/pr/better-MP_64BIT

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improved detection of MP_64BIT
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karel-m 2018-06-04 07:02:53 +02:00 committed by GitHub
commit f86aecf356
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1 changed files with 7 additions and 8 deletions
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tommath.h
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@ -37,7 +37,13 @@ extern "C" {
defined(__ia64) || defined(__ia64__) || defined(__itanium__) || defined(_M_IA64) || \
defined(__LP64__) || defined(_LP64) || defined(__64BIT__)
# if !(defined(MP_32BIT) || defined(MP_16BIT) || defined(MP_8BIT))
# define MP_64BIT
# if defined(__GNUC__)
/* we support 128bit integers only via: __attribute__((mode(TI))) */
# define MP_64BIT
# else
/* otherwise we fall back to MP_32BIT even on 64bit platforms */
# define MP_32BIT
# endif
# endif
#endif
@ -66,14 +72,7 @@ typedef uint32_t mp_word;
#elif defined(MP_64BIT)
/* for GCC only on supported platforms */
typedef uint64_t mp_digit;
# if defined(__GNUC__)
typedef unsigned long mp_word __attribute__((mode(TI)));
# else
/* it seems you have a problem
* but we assume you can somewhere define your own uint128_t */
typedef uint128_t mp_word;
# endif
# define DIGIT_BIT 60
#else
/* this is the default case, 28-bit digits */