std::basic_stacktrace<Allocator>::size

 

C++

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Exception handling exception uncaught_exceptionuncaught_exceptions (until C++20*)  (C++17) exception_ptr (C++11) make_exception_ptr (C++11) current_exception (C++11) rethrow_exception (C++11) nested_exception (C++11) throw_with_nested (C++11) rethrow_if_nested (C++11) Exception handling failures terminate terminate_handler get_terminate (C++11) set_terminate bad_exception unexpected (until C++17*) unexpected_handler (until C++17*) get_unexpected (until C++17*) set_unexpected (until C++17*) Error numbers Error codes errno Assertions assert

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std::basic_stacktrace

Member functions

basic_stacktrace::basic_stacktrace

basic_stacktrace::~basic_stacktrace

basic_stacktrace::operator=

basic_stacktrace::current

basic_stacktrace::get_allocator

Iterators

basic_stacktrace::beginbasic_stacktrace::cbegin

basic_stacktrace::endbasic_stacktrace::cend

basic_stacktrace::rbeginbasic_stacktrace::crbegin

basic_stacktrace::rendbasic_stacktrace::crend

Capacity

basic_stacktrace::empty

basic_stacktrace::size

basic_stacktrace::max_size

Element access

basic_stacktrace::operator[]

basic_stacktrace::at

Modifiers

basic_stacktrace::swap

Non-member functions

operator== operator<=>

swap(std::basic_stacktrace)

to_string(std::basic_stacktrace)

operator<<

Helper classes

hash<std::basic_stacktrace>

formatter<std::basic_stacktrace>

 

size_type size()constnoexcept;		(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)