feedc0de/boost_endian
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Implement, test, float and double endian types.

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Beman committed 2013-05-25 12:16:32 -04:00
1 parent f8f8d90b1f
commit a7ba65f830
4 files changed
+187 -7
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test/endian_test.cpp
+49
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@@ -223,6 +223,17 @@ namespace
little_uint32_t little_uint32 ;
little_uint64_t little_uint64 ;
big_float32_t big_float32;
big_float64_t big_float64;
little_float32_t little_float32;
little_float64_t little_float64;
VERIFY(big_float32.data() == reinterpret_cast<const char *>(&big_float32));
VERIFY(big_float64.data() == reinterpret_cast<const char *>(&big_float64));
VERIFY(little_float32.data() == reinterpret_cast<const char *>(&little_float32));
VERIFY(little_float64.data() == reinterpret_cast<const char *>(&little_float64));
VERIFY(big_8.data() == reinterpret_cast<const char *>(&big_8));
VERIFY(big_16.data() == reinterpret_cast<const char *>(&big_16));
VERIFY(big_24.data() == reinterpret_cast<const char *>(&big_24));
@@ -302,6 +313,11 @@ namespace
VERIFY( numeric_limits<signed char>::digits == 7 );
VERIFY( numeric_limits<unsigned char>::digits == 8 );
VERIFY_SIZE(sizeof( big_float32_t ), 4 );
VERIFY_SIZE(sizeof( big_float64_t ), 8 );
VERIFY_SIZE(sizeof( little_float32_t ), 4 );
VERIFY_SIZE(sizeof( little_float64_t ), 8 );
VERIFY_SIZE( sizeof( big_8_t ), 1 );
VERIFY_SIZE( sizeof( big_16_t ), 2 );
VERIFY_SIZE( sizeof( big_24_t ), 3 );
@@ -510,6 +526,39 @@ namespace
void check_representation_and_range_and_ops()
{
float big_float32_expected = std::numeric_limits<float>::max();
boost::endian::big_endian(big_float32_expected);
big_float32_t big_float32(std::numeric_limits<float>::max());
VERIFY(std::memcmp(big_float32.data(),
reinterpret_cast<const char*>(&big_float32_expected), sizeof(float)) == 0);
float little_float32_expected = std::numeric_limits<float>::max();
boost::endian::little_endian(little_float32_expected);
little_float32_t little_float32(std::numeric_limits<float>::max());
VERIFY(std::memcmp(little_float32.data(),
reinterpret_cast<const char*>(&little_float32_expected), sizeof(float)) == 0);
double big_float64_expected = std::numeric_limits<double>::max();
boost::endian::big_endian(big_float64_expected);
big_float64_t big_float64(std::numeric_limits<double>::max());
VERIFY(std::memcmp(big_float64.data(),
reinterpret_cast<const char*>(&big_float64_expected), sizeof(double)) == 0);
double little_float64_expected = std::numeric_limits<double>::max();
boost::endian::little_endian(little_float64_expected);
little_float64_t little_float64(std::numeric_limits<double>::max());
VERIFY(std::memcmp(little_float64.data(),
reinterpret_cast<const char*>(&little_float64_expected), sizeof(double)) == 0);
VERIFY_VALUE_AND_OPS( big_float32_t, float, std::numeric_limits<float>::max() );
VERIFY_VALUE_AND_OPS( big_float32_t, float, std::numeric_limits<float>::min() );
VERIFY_VALUE_AND_OPS( big_float64_t, double, std::numeric_limits<double>::max() );
VERIFY_VALUE_AND_OPS( big_float64_t, double, std::numeric_limits<double>::min() );
VERIFY_VALUE_AND_OPS( little_float32_t, float, std::numeric_limits<float>::max() );
VERIFY_VALUE_AND_OPS( little_float32_t, float, std::numeric_limits<float>::min() );
VERIFY_VALUE_AND_OPS( little_float64_t, double, std::numeric_limits<double>::max() );
VERIFY_VALUE_AND_OPS( little_float64_t, double, std::numeric_limits<double>::min() );
VERIFY_BIG_REPRESENTATION( big_8_t );
VERIFY_VALUE_AND_OPS( big_8_t, int_least8_t, 0x7f );