std::basic_stacktrace<Allocator>::current

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Metaprogramming library (C++11)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (C++17)

Regular expressions library (C++11)

Concurrency support library (C++11)

Technical specifications

Symbols index

External libraries

 

Diagnostics library

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 (C++11)(until C++17*)     set_unexpected (until C++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 (C++11) generic_category (C++11) system_category (C++11) error_condition (C++11) errc (C++11) error_code (C++11) system_error (C++11) Assertions assert Stacktrace stacktrace_entry (C++23) basic_stacktrace (C++23)

 

std::basic_stacktrace

Member functions

basic_stacktrace::basic_stacktrace (C++23)

basic_stacktrace::~basic_stacktrace (C++23)

basic_stacktrace::operator= (C++23)

basic_stacktrace::current (C++23)

basic_stacktrace::get_allocator (C++23)

Iterators

basic_stacktrace::beginbasic_stacktrace::cbegin (C++23)(C++23)

basic_stacktrace::endbasic_stacktrace::cend (C++23)(C++23)

basic_stacktrace::rbeginbasic_stacktrace::crbegin (C++23)(C++23)

basic_stacktrace::rendbasic_stacktrace::crend (C++23)(C++23)

Capacity

basic_stacktrace::empty (C++23)

basic_stacktrace::size (C++23)

basic_stacktrace::max_size (C++23)

Element access

basic_stacktrace::operator[] (C++23)

basic_stacktrace::at (C++23)

Modifiers

basic_stacktrace::swap (C++23)

Non-member functions

operator== operator<=> (C++23)(C++23)

std::swap (C++23)

std::to_string (C++23)

operator<< (C++23)

Helper classes

std::hash<std::basic_stacktrace> (C++23)

std::formatter<std::basic_stacktrace> (C++23)

 

static basic_stacktrace current( const allocator_type& alloc =                                      allocator_type() ) noexcept;	(1)	(since C++23)
static basic_stacktrace current( size_type skip, const allocator_type& alloc =                                      allocator_type() ) noexcept;	(2)	(since C++23)
static basic_stacktrace current( size_type skip, size_type max_depth,                                  const allocator_type& alloc =                                      allocator_type() ) noexcept;	(3)	(since C++23)

Let s[i] (0 ≤ i < n) denote the (i+1)-th stacktrace entry in the stacktrace of the current evaluation in the current thread of execution, where n is the count of the stacktrace entries in the stackentry.

1) Attempts to create a basic_stacktrace consisting of s[0], s[1], ..., s[n - 1].

2) Attempts to create a basic_stacktrace consisting of s[m], s[m + 1], ..., s[n - 1], where m is min(skip, n).

3) Attempts to create a basic_stacktrace consisting of s[m], s[m + 1], ..., s[o - 1], where m is min(skip, n) and o is min(skip + max_depth, n). The behavior is undefined if the skip + max_depth < skip (i.e. the mathematical result of skip + max_depth overflows).

In all cases, alloc is stored into the created basic_stacktrace and used to allocate the storage for stacktrace entries.

Parameters

alloc	-	allocator to use for all memory allocations of the constructed basic_stacktrace
skip	-	the number of stacktrace entries to skip
max_depth	-	the maximum depth of the stacktrace entries

Return value

If the allocation succeeds, the basic_stacktrace described above.

Otherwise, an empty basic_stacktrace.

See also

(constructor) (C++23)	creates a new basic_stacktrace (public member function)
current [static]	constructs a new source_location corresponding to the location of the call site (public static member function of std::source_location)