| Defined in header <exception> | ||
|---|---|---|
[[noreturn]] void rethrow_exception( std::exception_ptr p ) | (since C++11) |
Throws the previously captured exception object, referred to by the exception pointer p.
Parameters
| p | - | non-null std::exception_ptr |
Return value
(none).
Example
#include <iostream>
#include <string>
#include <exception>
#include <stdexcept>
void handle_eptr(std::exception_ptr eptr) // passing by value is ok
{
try {
if (eptr) {
std::rethrow_exception(eptr);
}
} catch(const std::exception& e) {
std::cout << "Caught exception \"" << e.what() << "\"\n";
}
}
int main()
{
std::exception_ptr eptr;
try {
std::string().at(1); // this generates an std::out_of_range
} catch(...) {
eptr = std::current_exception(); // capture
}
handle_eptr(eptr);
} // destructor for std::out_of_range called here, when the eptr is destructedOutput:
Caught exception "basic_string::at"
See also
| (C++11) | shared pointer type for handling exception objects (typedef) |
| (C++11) | captures the current exception in a std::exception_ptr (function) |
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