std::basic_stacktrace<Allocator>::basic_stacktrace
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(1) | (since C++23) |
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(2) | (since C++23) |
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(3) | (since C++23) |
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(4) | (since C++23) |
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(5) | (since C++23) |
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(6) | (since C++23) |
Constructs an empty basic_stacktrace, or copy/move from other.
1) Default constructor. Constructs an empty
basic_stacktrace with a default-constructed allocator.
2) Constructs an empty
basic_stacktrace using alloc as the allocator.
3) Copy constructor. Constructs a
basic_stacktrace with the copy of the contents of other, the allocator is obtained as if by calling std::allocator_traits<allocator_type>::select_on_container_copy_construction(other.get_allocator()).
4) Move constructor. Constructs a
basic_stacktrace with the contents of other using move semantics. Allocator is move-constructed from that of other. After construction, other is left in a valid but unspecified state.
5) Same as the copy constructor, except that
alloc is used as the allocator.
6) Behaves same as the move constructor if
alloc == other.get_allocator(). Otherwise, allocates memory with alloc and performs element-wise move. alloc is used as the allocator.
(3,5,6) may throw an exception or construct an empty basic_stacktrace on allocation failure.
Parameters
| alloc | - | allocator to use for all memory allocations of the constructed basic_stacktrace |
| other | - | another basic_stacktrace to copy/move from |
Exceptions
1)
noexcept specification:
noexcept(std::is_nothrow_default_constructible_v<allocator_type>)
3,5,6) May propagate the exception thrown on allocation failure.
Complexity
1,2) Constant.
3) Linear in size of
other.
4) Constant.
5) Linear in size of
other.
6) Linear in size of
other if alloc != other.get_allocator(), otherwise constant.
Notes
After container move construction (overload (4)), references, pointers, and iterators (other than the end iterator) to other remain valid, but refer to elements that are now in *this. The current standard makes this guarantee via the blanket statement in [container.reqmts]/67, and a more direct guarantee is under consideration via LWG issue 2321.
Example
See also
assigns to the basic_stacktrace (public member function) |
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[static]
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obtains the current stacktrace or its given part (public static member function) |
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