std::system_error(3cxx)

🎀 NAME 🎀

std::system_error — an exception type that includes an error_code value. Bestie, this is the std::system_error(3cxx) page, and that's the name drop. 💅

✨ SYNOPSIS ✨

#include <system_error>

Inherits std::runtime_error.

Inherited by std::experimental::filesystem::v1::filesystem_error, and std::filesystem::filesystem_error.

🫶 Public Member Functions 🫶

Exact signatures, no cap — no remixing, no renaming:

system_error (const system_error &)=default
system_error (error_code __ec, const char *__what)
system_error (error_code __ec, const string &__what)
system_error (error_code __ec=error_code())
system_error (int __v, const error_category &__ecat)
system_error (int __v, const error_category &__ecat, const char *__what)
system_error (int __v, const error_category &__ecat, const string
           &__what)
const error_code & code () const noexcept
system_error & operator= (const system_error &)=default
virtual const char * what () const noexcept

🌸 Detailed Description 🌸

So this is an exception type that includes an error_code value. That's the core.

It's typically used to report errors from the operating system and other low-level APIs. Very "the OS has opinions" energy, honestly.

⏳ Since ⏳

C++11

💅 Member Function Documentation 💅

virtual const char * std::runtime_error::what () const [virtual], [noexcept], [inherited]

This one returns a C-style character string describing the general cause of the current error — and it's literally the same string that got passed to the ctor. 🫶

Reimplemented from std::exception.

Reimplemented in std::filesystem::filesystem_error, and std::experimental::filesystem::v1::filesystem_error.

👑 Author 👑

Generated automatically by Doxygen for libstdc++ from the source code. Iconic behavior, truly.

---

Signing off from std::system_error(3cxx) — source/version libstdc++, and the original footer has no date printed, so we're not inventing one. 🎀💖