Error#

A flexible error result type.

Info

To use declarations from this page, include the <essence/error.hpp> header.

class error#

A flexible error type, great for use with std::expected.

error::error(std::string msg, i32 n = 1)#

template<typename ...Args> error::error(i32 n, std::string_view msg, Args&&... args)#: Constructor using std::format arguments.

std::string message() const#: Get a copy of the error message string.

error &message(std::string_view msg)#: Setter for the error message.

template<typename ...Args> error &message(std::string_view msg, Args&&... args)#: Setter for the error message, with std::format arguments.

i32 number() const#: Get the error number.

error &number(i32 n)#: Setter for the error number.

void die() const noexcept#: Prints the error message and terminates, marked with the [[noreturn]] attribute.

constexpr operator bool() const noexcept#: Implicit boolean conversion; evaluates to true only when the error number is -5, which is the default value.