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#include <exception>
#include <string>

namespace my {
struct string : std::string {
  explicit string(const char *msg,
                  const std::string::allocator_type &alloc = std::string::allocator_type{}) noexcept
  try : std::string(msg, alloc) {} catch(...) {
    extern void log_message(const char *) noexcept;
    log_message("std::string constructor threw an exception");
    std::terminate();
  }
  // ...
};
}
 
static const my::string global("...");

int main() {
  // ...
}

#include <exception>
 
int f_helper() noexcept {
  try {
    extern int f() noexcept(false);
    return f();
  } catch (...) {
    extern void log_message(const char *) noexcept;
    log_message("f() threw an exception");
    std::terminate();
  }
  // Unreachable.
}
 
int i = f_helper();

int main() {
  // ...
}