NAME¶

std::basic_stacktrace::empty - std::basic_stacktrace::empty

Synopsis¶

[[nodiscard]] bool empty() const noexcept; (since C++23)

Checks if the stacktrace has no stacktrace entries.

Parameters¶

(none)

Return value¶

true if the stacktrace is empty, false otherwise.

Complexity¶

Constant.

Example¶

// Run this code

#include <stacktrace>
#include <iostream>

int main()
{
std::cout << std::boolalpha;
std::stacktrace bktr;
std::cout << "Initially, bktr.empty(): " << bktr.empty() << '\n';

bktr = std::stacktrace::current();
std::cout << "After getting entries, bktr.empty(): " << bktr.empty() << '\n';
}

Possible output:¶

Initially, bktr.empty(): true
After getting entries, bktr.empty(): false

See also¶

size returns the number of stacktrace entries
(public member function)