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std::stacktrace_entry::description

From cppreference.com
 
 
Utilities library
General utilities
Relational operators (deprecated in C++20)
Integer comparison functions
(C++20)(C++20)(C++20)   
(C++20)
Swap and type operations
(C++14)
(C++11)

(C++11)
(C++11)
(C++17)
Common vocabulary types
(C++11)
(C++17)
(C++17)
(C++17)
(C++11)
(C++17)

Elementary string conversions
(C++17)
(C++17)

Stacktrace
 
std::stacktrace_entry
Member functions
Observers
Query
stacktrace_entry::description
(C++23)
Non-member functions
(C++23)(C++23)
(C++23)
(C++23)
Helper classes
 
std::string description() const;
(since C++23)

Returns a description of the evaluation represented by *this on success, or an empty string on failure other than allocation failure, e.g. when *this is empty.

Contents

[edit] Parameters

(none)

[edit] Return value

A description of the represented evaluation on success, an empty string on failure other than allocation failure.

[edit] Exceptions

Throws std::bad_alloc if memory for the internal data structures or the resulting string cannot be allocated.

[edit] Notes

Custom allocators support for this function is not provided, because the implementations usually require platform specific allocations, system calls and a lot of CPU intensive work, while a custom allocator does not provide benefits for this function as the platform specific operations take an order of magnitude more time than the allocation.

[edit] Example