NAME¶

std::basic_stacktrace::current - std::basic_stacktrace::current

Synopsis¶

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

allocator_type() ) noexcept;

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.

Example¶

This section is incomplete
Reason: no example

See also¶

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

Category:¶

* Todo no example