std::basic_stacktrace<Allocator>::size

 

哋它亢++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (哋它亢++20)

Language support library

Concepts library (哋它亢++20)

Metaprogramming library (哋它亢++11)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (哋它亢++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (哋它亢++17)

Regular expressions library (哋它亢++11)

Concurrency support library (哋它亢++11)

Technical specifications

Symbols index

External libraries

 

Diagnostics library

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

Exception categories logic_error invalid_argument domain_error length_error out_of_range runtime_error range_error overflow_error underflow_error tx_exception (TM TS) System error support error_category (哋它亢++11) generic_category (哋它亢++11) system_category (哋它亢++11) error_condition (哋它亢++11) errc (哋它亢++11) error_code (哋它亢++11) system_error (哋它亢++11) Assertions assert Stacktrace stacktrace_entry (哋它亢++23) basic_stacktrace (哋它亢++23)

 

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() const noexcept;		(since 哋它亢++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)