20 General utilities library [utilities]

20.21 Stacktrace [stacktrace]

20.21.3 Class stacktrace_­entry [stacktrace.entry] Observers [stacktrace.entry.obs]

constexpr native_handle_type native_handle() const noexcept;
The semantics of this function are implementation-defined.
Remarks: Successive invocations of the native_­handle function for an unchanged stacktrace_­entry object return identical values.
constexpr explicit operator bool() const noexcept;
Returns: false if and only if *this is empty.