std::to_string - cppreference.com (original) (raw)

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().

[edit] Parameters

[edit] Return value

A string with a description of f.

[edit] Exceptions

May throw implementation-defined exceptions.

[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

#include #include #include   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

[edit] See also

| | returns a string with a description of the basic_stacktrace (function template) [edit] | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |