All Exception Transport and Termination Facilities

All Exception Transport and Termination Facilities

A compact scan page for exception_ptr transport, nested exceptions, uncaught-exception queries, and termination handlers.

How to use this reference page

Use reference pages to confirm names, categories, nearby facilities, and the constraints that matter before writing or reviewing code.

Scan the top of the page first to identify the primary types, functions, or algorithm families involved.
Use the nearby-page links when your question is really about a companion header, related algorithm family, or broader subsystem.
Validate tricky behavior with a small compileable example before relying on memory for details like invalidation, ordering, allocation, or lifetime rules.

All Exception Transport and Termination Facilities

Exception transport helpers

std::exception_ptr
std::current_exception
std::rethrow_exception
std::make_exception_ptr

std::nested_exception
std::throw_with_nested
std::rethrow_if_nested

Termination and handler control

std::terminate
std::set_terminate
std::get_terminate
std::terminate_handler

Uncaught-exception state queries

std::uncaught_exceptions
legacy std::uncaught_exception in older codebases

Practical rules

use exception_ptr when exceptions must cross thread or deferred-execution boundaries
use termination hooks sparingly and keep them simple, reliable, and non-throwing
uncaught_exceptions() is mainly a low-level building block for transactional guards and rollback helpers

Example in practice

int main() {
    // Pick one facility from this reference page.
    // Write the smallest program that exercises its main precondition,
    // complexity rule, or lifetime constraint before scaling up.
    return 0;
}