Botan 3.5.0
Crypto and TLS for C&
Botan::Lookup_Error Class Reference

#include <exceptn.h>

Inheritance diagram for Botan::Lookup_Error:
Botan::Exception Botan::Algorithm_Not_Found Botan::Provider_Not_Found

Public Member Functions

virtual int error_code () const noexcept
ErrorType error_type () const noexcept override
 Lookup_Error (std::string_view err)
 Lookup_Error (std::string_view type, std::string_view algo, std::string_view provider="")
const char * what () const noexcept override

Detailed Description

A request was made for some kind of object which could not be located

Definition at line 235 of file exceptn.h.

Constructor & Destructor Documentation

◆ Lookup_Error() [1/2]

Botan::Lookup_Error::Lookup_Error ( std::string_view err)

Definition at line 237 of file exceptn.h.

237: Exception(err) {}
Exception(std::string_view msg)
Definition exceptn.cpp:71

◆ Lookup_Error() [2/2]

Botan::Lookup_Error::Lookup_Error ( std::string_view type,
std::string_view algo,
std::string_view provider = "" )

Definition at line 96 of file exceptn.cpp.

96 :
97 Exception(format_lookup_error(type, algo, provider)) {}

Member Function Documentation

◆ error_code()

virtual int Botan::Exception::error_code ( ) const

Return an error code associated with this exception, or otherwise 0.

The domain of this error varies depending on the source, for example on POSIX systems it might be errno, while on a Windows system it might be the result of GetLastError or WSAGetLastError.

Reimplemented in Botan::CommonCrypto_Error, Botan::Compression_Error, Botan::PKCS11::PKCS11_ReturnError, Botan::SQL_Database::SQL_DB_Error, Botan::System_Error, Botan::TLS::TLS_Exception, and Botan_FFI::FFI_Error.

Definition at line 107 of file exceptn.h.

107{ return 0; }

◆ error_type()

ErrorType Botan::Lookup_Error::error_type ( ) const

Return the "type" of error which occurred.

Reimplemented from Botan::Exception.

Definition at line 241 of file exceptn.h.

◆ what()

const char * Botan::Exception::what ( ) const

Return a descriptive string which is hopefully comprehensible to a developer. It will likely not be useful for an end user.

The string has no particular format, and the content of exception messages may change from release to release. Thus the main use of this function is for logging or debugging.

Definition at line 93 of file exceptn.h.

93{ return m_msg.c_str(); }

Referenced by Botan::TLS::Client_Key_Exchange::Client_Key_Exchange(), and Botan_FFI::ffi_guard_thunk().

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