std::basic_stacktrace::rbegin, std::basic_stacktrace::crbegin - cppreference.com (original) (raw)

Returns a reverse iterator to the first entry of the reversed basic_stacktrace. It corresponds to the last entry of the original basic_stacktrace. If the basic_stacktrace is empty, the returned iterator is equal to rend().

[edit] Parameters

(none)

[edit] Return value

Reverse iterator to the first entry.

[edit] Complexity

Constant.

[edit] Example

#include #include #include   int main() { auto trace = std::stacktrace::current(); auto empty_trace = std::stacktrace{};   // Print stacktrace. std::for_each(trace.rbegin(), trace.rend(), [](const auto& f) { std::cout << f << '\n'; });   if (empty_trace.rbegin() == empty_trace.rend()) std::cout << "stacktrace 'empty_trace' is indeed empty.\n"; }

Possible output:

0x0000000000402A29 in ./prog.exe __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6 0x0000000000402BA5 in ./prog.exe stacktrace 'empty_trace' is indeed empty.

[edit] See also

| | returns a reverse iterator to the end (public member function) [edit] | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |