diff options
Diffstat (limited to 'runtime/base/bit_struct.h')
| -rw-r--r-- | runtime/base/bit_struct.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/runtime/base/bit_struct.h b/runtime/base/bit_struct.h index 1f86ee1917..16b555e1c6 100644 --- a/runtime/base/bit_struct.h +++ b/runtime/base/bit_struct.h @@ -130,6 +130,18 @@ struct BitStructField { return kBitWidth; } + BitStructField& operator=(const BitStructField& other) { + // Warning. The default operator= will overwrite the entire storage! + return *this = static_cast<T>(other); + } + + BitStructField(const BitStructField& other) { + Assign(*this, static_cast<T>(other)); + } + + BitStructField() = default; + ~BitStructField() = default; + protected: template <typename T2> T2& Assign(T2& what, T value) { @@ -265,7 +277,11 @@ using BitStructUint = #define BITSTRUCT_DEFINE_START(name, bitwidth) \ union name { \ art::detail::DefineBitStructSize<(bitwidth)> _; \ - static constexpr size_t BitStructSizeOf() { return (bitwidth); } + static constexpr size_t BitStructSizeOf() { return (bitwidth); } \ + name& operator=(const name& other) { _ = other._; return *this; } \ + name(const name& other) : _(other._) {} \ + name() = default; \ + ~name() = default; // End the definition of a bitstruct, and insert a sanity check // to ensure that the bitstruct did not exceed the specified size. |