NAME¶

std::basic_stacktrace::size - std::basic_stacktrace::size

Synopsis¶

size_type size() const noexcept; (since C++23)

Returns the number of entries in the stacktrace.

Parameters¶

(none)

Return value¶

The number of entries in the stacktrace.

Complexity¶

Constant.

Example¶

The following code uses size to display the number of entries in the current
stacktrace:

// Run this code

#include <stacktrace>
#include <iostream>

int main()
{
auto trace = std::stacktrace::current();

std::cout << "trace contains " << trace.size() << " entries.\n";
}

Possible output:¶

trace contains 3 entries.

See also¶

empty checks whether the basic_stacktrace is empty
(public member function)
max_size returns the maximum possible number of stacktrace entries
(public member function)