libstdc++
Diagnostics
Collaboration diagram for Diagnostics:

Topics

 Exceptions

Classes

class  std::_V2::error_category
class  std::error_code
class  std::error_condition
struct  std::is_error_code_enum< _Tp >
struct  std::is_error_condition_enum< _Tp >

Functions

const error_category & std::generic_category () noexcept
error_code make_error_code (errc __e) noexcept
error_condition make_error_condition (errc __e) noexcept
bool operator!= (const error_code &__lhs, const error_code &__rhs) noexcept
bool operator!= (const error_code &__lhs, const error_condition &__rhs) noexcept
bool operator!= (const error_condition &__lhs, const error_code &__rhs) noexcept
bool operator!= (const error_condition &__lhs, const error_condition &__rhs) noexcept
bool operator< (const error_code &__lhs, const error_code &__rhs) noexcept
bool operator< (const error_condition &__lhs, const error_condition &__rhs) noexcept
template<typename _CharT, typename _Traits>
basic_ostream< _CharT, _Traits > & operator<< (basic_ostream< _CharT, _Traits > &__os, const error_code &__e)
bool operator== (const error_code &__lhs, const error_code &__rhs) noexcept
bool operator== (const error_code &__lhs, const error_condition &__rhs) noexcept
bool operator== (const error_condition &__lhs, const error_code &__rhs) noexcept
bool operator== (const error_condition &__lhs, const error_condition &__rhs) noexcept
const error_category & std::system_category () noexcept

Variables

template<typename _Tp>
constexpr bool std::is_error_code_enum_v
template<typename _Tp>
constexpr bool std::is_error_condition_enum_v

Detailed Description

Components for error handling, reporting, and diagnostic operations.

Function Documentation

◆ generic_category()

const error_category & std::_V2::generic_category ( )
noexcept

Error category for errno error codes.

References generic_category().

Referenced by generic_category().

◆ make_error_code()

error_code make_error_code ( errc __e)
related

Create an error_code representing a standard errc condition.

The std::errc constants correspond to errno macros and so use the generic category.

Since
C++11

Definition at line 299 of file system_error.

◆ make_error_condition()

error_condition make_error_condition ( errc __e)
related

Create an error_condition representing a standard errc condition.

The std::errc constants correspond to errno macros and so use the generic category.

Since
C++11

Definition at line 431 of file system_error.

References error_condition().

◆ operator!=() [1/4]

bool operator!= ( const error_code & __lhs,
const error_code & __rhs )
related

Definition at line 521 of file system_error.

◆ operator!=() [2/4]

bool operator!= ( const error_code & __lhs,
const error_condition & __rhs )
related

Definition at line 526 of file system_error.

◆ operator!=() [3/4]

bool operator!= ( const error_condition & __lhs,
const error_code & __rhs )
related

Definition at line 531 of file system_error.

◆ operator!=() [4/4]

bool operator!= ( const error_condition & __lhs,
const error_condition & __rhs )
related

Definition at line 536 of file system_error.

◆ operator<() [1/2]

bool operator< ( const error_code & __lhs,
const error_code & __rhs )
related

Ordered comparison for std::error_code.

This defines a total order by comparing the categories, and then if they are equal comparing the values.

Since
C++11

Definition at line 320 of file system_error.

References operator<().

Referenced by operator<().

◆ operator<() [2/2]

bool operator< ( const error_condition & __lhs,
const error_condition & __rhs )
related

Ordered comparison for std::error_condition.

This defines a total order by comparing the categories, and then if they are equal comparing the values.

Since
C++11

Definition at line 502 of file system_error.

References error_condition(), and operator<().

Referenced by operator<().

◆ operator<<()

template<typename _CharT, typename _Traits>
basic_ostream< _CharT, _Traits > & operator<< ( basic_ostream< _CharT, _Traits > & __os,
const error_code & __e )
related

Write a std::error_code to an ostream.

Since
C++11

Definition at line 320 of file system_error.

◆ operator==() [1/4]

bool operator== ( const error_code & __lhs,
const error_code & __rhs )
related

Equality comparison for std::error_code.

Returns true only if they have the same category and the same value.

Since
C++11

Definition at line 445 of file system_error.

◆ operator==() [2/4]

bool operator== ( const error_code & __lhs,
const error_condition & __rhs )
related

Equality comparison for std::error_code and std::error_condition.

Uses each category's equivalent member function to check whether the values correspond to an equivalent error in that category.

Since
C++11

Definition at line 461 of file system_error.

References error_condition().

◆ operator==() [3/4]

bool operator== ( const error_condition & __lhs,
const error_code & __rhs )
related

Definition at line 513 of file system_error.

◆ operator==() [4/4]

bool operator== ( const error_condition & __lhs,
const error_condition & __rhs )
related

Equality comparison for std::error_condition.

Returns true only if they have the same category and the same value.

Since
C++11

Definition at line 476 of file system_error.

References error_condition().

◆ system_category()

const error_category & std::_V2::system_category ( )
noexcept

Error category for other error codes defined by the OS.

References make_error_code(), make_error_condition(), and system_category().

Referenced by system_category().

Variable Documentation

◆ is_error_code_enum_v

template<typename _Tp>
bool std::is_error_code_enum_v
inlineconstexpr

Definition at line 72 of file system_error.

◆ is_error_condition_enum_v

template<typename _Tp>
bool std::is_error_condition_enum_v
inlineconstexpr

Definition at line 75 of file system_error.