ceph/src/boost/libs/multiprecision/config/has_mpfr.cpp

   1 //  Copyright John Maddock 2012.
   2 //  Use, modification and distribution are subject to the
   3 //  Boost Software License, Version 1.0. (See accompanying file
   4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #include <cstddef> // See https://gcc.gnu.org/gcc-4.9/porting_to.html
   7 #include <mpfr.h>
   8 #include <boost/config.hpp>
   9
  10 #ifdef __GNUC__
  11 #pragma message "MPFR_VERSION_STRING=" MPFR_VERSION_STRING
  12 #endif
  13
  14 #if (__GNU_MP_VERSION < 4) || ((__GNU_MP_VERSION == 4) && (__GNU_MP_VERSION_MINOR < 2))
  15 #error "Incompatible GMP version"
  16 #endif
  17
  18 #if (MPFR_VERSION < 3)
  19 #error "Incompatible MPFR version"
  20 #endif
  21
  22 #ifdef __GNUC__
  23 #pragma message "__GNU_MP_VERSION=" BOOST_STRINGIZE(__GNU_MP_VERSION)
  24 #pragma message "__GNU_MP_VERSION_MINOR=" BOOST_STRINGIZE(__GNU_MP_VERSION_MINOR)
  25 #endif
  26
  27 #if (__GNU_MP_VERSION < 4) || ((__GNU_MP_VERSION == 4) && (__GNU_MP_VERSION_MINOR < 2))
  28 #error "Incompatible GMP version"
  29 #endif
  30
  31
  32 int main()
  33 {
  34    void *(*alloc_func_ptr) (size_t);
  35    void *(*realloc_func_ptr) (void *, size_t, size_t);
  36    void (*free_func_ptr) (void *, size_t);
  37
  38    mp_get_memory_functions(&alloc_func_ptr, &realloc_func_ptr, &free_func_ptr);
  39
  40    mpfr_buildopt_tls_p();
  41
  42    mpfr_t t;
  43    mpfr_init2(t, 128);
  44    if(t[0]._mpfr_d)
  45       mpfr_clear(t);
  46
  47    return 0;
  48 }
  49