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| Member functions | ||||
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| Query | ||||
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to_string(std::stacktrace_entry) | ||||
| Helper classes | ||||
Defined in header <stacktrace> | ||
std::string to_string(conststd::stacktrace_entry& f); | (since C++23) | |
Returns a string with a description off.
The standard recommends that the description should provide information about the contained evaluation, including information fromf.source_file() andf.source_line().
Contents |
| f | - | astacktrace_entry whose description is to be returned |
A string with a description off.
May throw implementation-defined exceptions.
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.
#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
(C++23) | returns a string with a description of thebasic_stacktrace(function template)[edit] |
