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// This file is part of CAF, the C++ Actor Framework. See the file LICENSE in
// the main distribution directory for license terms and copyright or visit
// https://github.com/actor-framework/actor-framework/blob/master/LICENSE.
#define CAF_SUITE byte
#include "caf/byte.hpp"
#include "core-test.hpp"
#include <cstdint>
#include "caf/detail/parser/add_ascii.hpp"
#include "caf/raise_error.hpp"
using namespace caf;
namespace {
byte operator"" _b(const char* str, size_t n) {
size_t consumed = 0;
uint8_t result = 0;
for (size_t i = 0; i < n; ++i) {
if (str[i] != '\'') {
if (!detail::parser::add_ascii<2>(result, str[i]))
CAF_RAISE_ERROR(std::logic_error,
"invalid character or over-/underflow");
else
++consumed;
}
}
if (consumed != 8)
CAF_RAISE_ERROR(std::logic_error, "too few digits, expected exactly 8");
return static_cast<byte>(result);
}
struct fixture {
fixture() {
// Sanity checks.
if ("0001'1100"_b != static_cast<byte>(0x1C))
CAF_FAIL("operator \"\"_b broken");
if ("1000'0001"_b != static_cast<byte>(0x81))
CAF_FAIL("operator \"\"_b broken");
}
};
} // namespace
BEGIN_FIXTURE_SCOPE(fixture)
CAF_TEST(to integer) {
CHECK_EQ(to_integer<int>("0110'1001"_b), 0x69);
}
CAF_TEST(left shift) {
auto x = "0000'0001"_b;
x <<= 1;
CHECK_EQ(x, "0000'0010"_b);
CHECK_EQ("0000'0010"_b << 1, "0000'0100"_b);
CHECK_EQ("0000'0010"_b << 2, "0000'1000"_b);
CHECK_EQ("0000'0010"_b << 3, "0001'0000"_b);
CHECK_EQ("0000'0010"_b << 4, "0010'0000"_b);
CHECK_EQ("0000'0010"_b << 5, "0100'0000"_b);
CHECK_EQ("0000'0010"_b << 6, "1000'0000"_b);
CHECK_EQ("0000'0010"_b << 7, "0000'0000"_b);
}
CAF_TEST(right shift) {
auto x = "0100'0000"_b;
x >>= 1;
CHECK_EQ(x, "0010'0000"_b);
CHECK_EQ("0100'0000"_b >> 1, "0010'0000"_b);
CHECK_EQ("0100'0000"_b >> 2, "0001'0000"_b);
CHECK_EQ("0100'0000"_b >> 3, "0000'1000"_b);
CHECK_EQ("0100'0000"_b >> 4, "0000'0100"_b);
CHECK_EQ("0100'0000"_b >> 5, "0000'0010"_b);
CHECK_EQ("0100'0000"_b >> 6, "0000'0001"_b);
CHECK_EQ("0100'0000"_b >> 7, "0000'0000"_b);
}
CAF_TEST(bitwise or) {
auto x = "0001'1110"_b;
x |= "0111'1000"_b;
CHECK_EQ(x, "0111'1110"_b);
CHECK_EQ("0001'1110"_b | "0111'1000"_b, "0111'1110"_b);
}
CAF_TEST(bitwise and) {
auto x = "0001'1110"_b;
x &= "0111'1000"_b;
CHECK_EQ(x, "0001'1000"_b);
CHECK_EQ("0001'1110"_b & "0111'1000"_b, "0001'1000"_b);
}
CAF_TEST(bitwise xor) {
auto x = "0001'1110"_b;
x ^= "0111'1000"_b;
CHECK_EQ(x, "0110'0110"_b);
CHECK_EQ("0001'1110"_b ^ "0111'1000"_b, "0110'0110"_b);
}
CAF_TEST(bitwise not ) {
CHECK_EQ(~"0111'1110"_b, "1000'0001"_b);
}
END_FIXTURE_SCOPE()
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