std::basic_stacktrace::begin, std::basic_stacktrace::cbegin - cppreference.com (original) (raw)

Returns an iterator to the first entry of the basic_stacktrace.

If the basic_stacktrace is empty, the returned iterator is equal to end().

[edit] Parameters

(none)

[edit] Return value

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.begin(), trace.end(), [](const auto& f) { std::cout << f << '\n'; });   if (empty_trace.begin() == empty_trace.end()) std::cout << "stacktrace 'empty_trace' is indeed empty.\n"; }

Possible output:

0x0000000000402BA8 in ./prog.exe __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6 0x0000000000402A29 in ./prog.exe stacktrace 'empty_trace' is indeed empty.

[edit] See also

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