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std::basic_stacktrace<Allocator>::current

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.

(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`)

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std::basic_stacktrace<Allocator>::current

Parameters

Return value

Example

See also