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Reference

C library:
- <cassert> (assert.h)
- <cctype> (ctype.h)
- <cerrno> (errno.h)
- C++11
  <cfenv> (fenv.h)
- <cfloat> (float.h)
- C++11
  <cinttypes> (inttypes.h)
- <ciso646> (iso646.h)
- <climits> (limits.h)
- <clocale> (locale.h)
- <cmath> (math.h)
- <csetjmp> (setjmp.h)
- <csignal> (signal.h)
- <cstdarg> (stdarg.h)
- C++11
  <cstdbool> (stdbool.h)
- <cstddef> (stddef.h)
- C++11
  <cstdint> (stdint.h)
- <cstdio> (stdio.h)
- <cstdlib> (stdlib.h)
- <cstring> (string.h)
- C++11
  <ctgmath> (tgmath.h)
- <ctime> (time.h)
- C++11
  <cuchar> (uchar.h)
- <cwchar> (wchar.h)
- <cwctype> (wctype.h)
Containers:
- C++11
  <array>
- <deque>
- C++11
  <forward_list>
- <list>
- <map>
- <queue>
- <set>
- <stack>
- C++11
  <unordered_map>
- C++11
  <unordered_set>
- <vector>
Input/Output:
- <fstream>
- <iomanip>
- <ios>
- <iosfwd>
- <iostream>
- <istream>
- <ostream>
- <sstream>
- <streambuf>
Multi-threading:
- C++11
  <atomic>
- C++11
  <condition_variable>
- C++11
  <future>
- C++11
  <mutex>
- C++11
  <thread>
Other:
- <algorithm>
- <bitset>
- C++11
  <chrono>
- C++11
  <codecvt>
- <complex>
- <exception>
- <functional>
- C++11
  <initializer_list>
- <iterator>
- <limits>
- <locale>
- <memory>
- <new>
- <numeric>
- C++11
  <random>
- C++11
  <ratio>
- C++11
  <regex>
- <stdexcept>
- <string>
- C++11
  <system_error>
- C++11
  <tuple>
- C++11
  <type_traits>
- C++11
  <typeindex>
- <typeinfo>
- <utility>
- <valarray>

<system_error>

classes
- C++11
  error_category
- C++11
  error_code
- C++11
  error_condition
- C++11
  is_error_code_enum
- C++11
  is_error_condition_enum
- C++11
  system_error
enum classes
- C++11
  errc
functions
- C++11
  generic_category
- C++11
  make_error_code
- C++11
  make_error_condition
- C++11
  system_category

Reference
<system_error>

header

<system_error>

System errors

This header defines a series of standardized elements to report error conditions originating from the operating system or other low-level operations.

Most such errors are identified by a single integer value, which is sometimes system-specific. The class error_code encapsulates and preserves these system-generated values associating them with an error_category.

These objects can be compared against objects of type error_condition, which is a very similar type meant to represent the same errors, but in a portable way. In this way, library calls to the system may produce error_code values (which preserve system-specific values), and programs can compare them against error_condition objects (which are portable between systems).

error_category objects identify different sets of error codes and also determine the correspondences between error codes and error conditions.

This header defines two categories: generic_category and a system_category. Other libraries may define additional error categories (such as the standard iostream_category, defined in <ios>).

The class system_error is a standard exception type that carries an error_code object.

Classes

error_category: Error category (abstract class)

error_code: Error code (class)

error_condition: Error condition (class)

system_error: System error exception (class)

Trait classes:

is_error_code_enum: error_code enum flag (class)

is_error_condition_enum: error_condition enum flag (class)

Enum classes:

errc: Generic error conditions (enum class)

Functions

Constructor helpers:

make_error_code: Make error code (function)

make_error_condition: Make error condition (function)

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classes

enum classes

functions

<system_error>

Classes

Trait classes:

Enum classes:

Functions

Categories:

Constructor helpers: