std::to_string

 

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std::stacktrace_entry

Member functions

stacktrace_entry::stacktrace_entry (C++23)

stacktrace_entry::operator= (C++23)

Observers

stacktrace_entry::native_handle (C++23)

stacktrace_entry::operator bool (C++23)

Query

stacktrace_entry::description (C++23)

stacktrace_entry::source_file (C++23)

stacktrace_entry::source_line (C++23)

Non-member functions

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

to_string (C++23)

operator<< (C++23)

Helper classes

hash<stacktrace_entry> (C++23)

 

Defined in header <stacktrace>
std::string to_string( const std::stacktrace_entry& f );		(since C++23)

Returns a string with a description of f.

The standard recommends that the description should provide information about the contained evaluation, including information from f.source_file() and f.source_line().

Parameters

f

-

a stacktrace_entry whose description is to be returned

Return value

A string with a description of f.

Exceptions

May throw implementation-defined exceptions.

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.

Example

Run this code

#include <stacktrace>
#include <string>
#include <iostream>
 
int main()
{
    auto st = std::stacktrace::current();
    std::cout <<
        "Description of an empty stacktrace entry:\n" +
        std::to_string(std::stacktrace_entry{}) << '\n';
    if (st.size() > 0) {
        std::cout <<
            "Description of a non-empty stacktrace entry:\n" +
            std::to_string(st[0]) << '\n';
    }
}

Possible output:

Description of an empty stacktrace entry:
 
Description of a non-empty stacktrace entry:
0x0000000000402DE9 in ./prog.exe

See also

to_string (C++23)

returns a string with a description of the basic_stacktrace (function template)