1 /*

     2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

     3  * ORACLE PROPRIETARY/CONFIDENTIAL.  Use is subject to license terms.

     4  */

     5 

     6 #include "precompiled.hpp"

     7 #include "gc/z/zBitField.hpp"

     8 #include "unittest.hpp"

     9 

    10 TEST(ZBitFieldTest, test) {

    11   typedef ZBitField<uint64_t, bool,      0,  1>    field_bool;

    12   typedef ZBitField<uint64_t, uint8_t,   1,  8>    field_uint8;

    13   typedef ZBitField<uint64_t, uint16_t,  2, 16>    field_uint16;

    14   typedef ZBitField<uint64_t, uint32_t, 32, 32>    field_uint32;

    15   typedef ZBitField<uint64_t, uint64_t,  0, 63>    field_uint64;

    16   typedef ZBitField<uint64_t, void*,     1, 61, 3> field_pointer;

    17 

    18   uint64_t entry;

    19 

    20   {

    21     const bool value = false;

    22     entry = field_bool::encode(value);

    23     EXPECT_EQ(field_bool::decode(entry), value) << "Should be equal";

    24   }

    25 

    26   {

    27     const bool value = true;

    28     entry = field_bool::encode(value);

    29       EXPECT_EQ(field_bool::decode(entry), value) << "Should be equal";

    30   }

    31 

    32   {

    33     const uint8_t value = ~(uint8_t)0;

    34     entry = field_uint8::encode(value);

    35     EXPECT_EQ(field_uint8::decode(entry), value) << "Should be equal";

    36   }

    37 

    38   {

    39     const uint16_t value = ~(uint16_t)0;

    40     entry = field_uint16::encode(value);

    41     EXPECT_EQ(field_uint16::decode(entry), value) << "Should be equal";

    42   }

    43 

    44   {

    45     const uint32_t value = ~(uint32_t)0;

    46     entry = field_uint32::encode(value);

    47     EXPECT_EQ(field_uint32::decode(entry), value) << "Should be equal";

    48   }

    49 

    50   {

    51     const uint64_t value = ~(uint64_t)0 >> 1;

    52     entry = field_uint64::encode(value);

    53     EXPECT_EQ(field_uint64::decode(entry), value) << "Should be equal";

    54   }

    55 

    56   {

    57     void* const value = (void*)(~(uintptr_t)0 << 3);

    58     entry = field_pointer::encode(value);

    59     EXPECT_EQ(field_pointer::decode(entry), value) << "Should be equal";

    60   }

    61 }