std::regex_error-compatible exception. More...

#include <regex_core.hpp>

Inheritance diagram for real::compat::regex_error:

Collaboration diagram for real::compat::regex_error:

Public Member Functions
	regex_error (const std::regex_error &error)
	From a std backend error (the fallback path); keeps std's exact code.

	regex_error (std::regex_constants::error_type code, std::string message)
	With an explicit code and message — the strict-policy rejection of a pattern REAL cannot represent linearly (`error_complexity`), carrying a REAL-identifiable message.

const char *	what () const noexcept override
	The message, which for a strict-policy rejection identifies REAL as the source.

Private Attributes
std::string	message_
	The originating error's detailed message.

Detailed Description

std::regex_error-compatible exception.

Thrown on two paths, both preserving the std::regex_error contract:

Invalid for both backends (a syntax error): real rejects, and so does std — the exact std .code() is preserved and what() keeps std's message, so a syntax error is byte-for-byte std.
Strict-policy rejection (policy): a pattern real cannot represent linearly but std could (a backreference, an unbounded lookaround, a POSIX class) — code() is error_complexity and what() carries a REAL-identifiable message. Under policy::fallback this path delegates to std instead of throwing, so the only thrown case there is the invalid-for-both one above.

Constructor & Destructor Documentation

◆ regex_error() [1/2]

real::compat::regex_error::regex_error ( const std::regex_error & error )

inlineexplicit

From a std backend error (the fallback path); keeps std's exact code.

Parameters

[in] error The standard library error to adopt.

◆ regex_error() [2/2]

real::compat::regex_error::regex_error	(	std::regex_constants::error_type	code,
		std::string	message
	)

inline

With an explicit code and message — the strict-policy rejection of a pattern REAL cannot represent linearly (error_complexity), carrying a REAL-identifiable message.

Parameters

[in]	code	The `std::regex_constants::error_type` to report.
[in]	message	The text what returns.

Member Function Documentation

◆ what()

const char * real::compat::regex_error::what ( ) const

inlineoverridenoexcept

The message, which for a strict-policy rejection identifies REAL as the source.

Returns: A NUL-terminated message valid for this object's lifetime.

The documentation for this class was generated from the following file:

include/real/compat/std/regex_core.hpp