Specializations of std::atomic_ref

You can specialize std::atomic_ref for user-defined types, use partial specializations for pointer types, or full specializations for arithmetic types such as integral or floating-point types.

Primary template

The primary template std::atomic_ref can be instantiated with a TriviallyCopyable type T as:

struct Counters { 
    int a;
    int b; 
};
Counter counter;
std::atomic_ref<Counters> cnt(counter);

Partial specializations for pointer types

The standard provides partial specializations for a pointer type: std::atomic_ref<T*>.

Specializations for arithmetic types

The standard provides specialization for the integral and floating-point types: std::atomic_ref<arithmetic type>.

• Character types: char, char8_t(C++20), char16_t, char32_t, and wchar_t

• Standard signed-integer types: signed char, short, int, long, and long long

• Standard unsigned-integer types: unsigned char, unsigned short, unsigned int, unsigned long, and unsigned long long

• Additional integer types, defined in the header cstdint:

  • int8_t, int16_t, int32_t, and int64_t (signed integer with exactly $8$, $16$, $32$, and $64$ bits)
  • uint8_t, uint16_t, uint32_t, and uint64_t (unsigned integer with exactly

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