ceph/src/boost/libs/endian/test/packed_arithmetic_test.cpp

   1 // Copyright 2020 Peter Dimov
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // https://www.boost.org/LICENSE_1_0.txt
   4
   5 #if !defined(__GNUC__)
   6
   7 #include <boost/config/pragma_message.hpp>
   8 BOOST_PRAGMA_MESSAGE( "Skipping test because __GNUC__ is not defined" )
   9 int main() {}
  10
  11 #else
  12
  13 #define BOOST_ENDIAN_FORCE_PODNESS
  14 #define BOOST_ENDIAN_NO_CTORS
  15 #include <boost/endian/arithmetic.hpp>
  16 #include <boost/core/lightweight_test.hpp>
  17
  18 using namespace boost::endian;
  19
  20 struct X
  21 {
  22     big_uint16_t a;
  23     native_float64_t b;
  24     little_uint16_t c;
  25 } __attribute__((packed));
  26
  27 int main()
  28 {
  29     BOOST_TEST_EQ( sizeof(big_uint16_t), 2 );
  30     BOOST_TEST_EQ( sizeof(native_float64_t), 8 );
  31     BOOST_TEST_EQ( sizeof(little_uint16_t), 2 );
  32
  33     BOOST_TEST_EQ( sizeof(X), 12 );
  34
  35     return boost::report_errors();
  36 }
  37
  38 #endif