Aleksandrs Gumenuks / MaximInterface_Extended

Extended MaximInterface

Dependents:   mbed_DS28EC20_GPIO

Utilities/system_error.hpp@3:f818ea5172ed, 2018-01-11 (annotated)

Committer:
IanBenzMaxim
Date:
Thu Jan 11 13:50:39 2018 -0600
Revision:
3:f818ea5172ed
Parent:
0:f77ad7f72d04
Child:
6:a8c83a2e6fa4
Updated to version 1.1.

Who changed what in which revision?

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IanBenzMaxim 0:f77ad7f72d04 1 /*******************************************************************************
IanBenzMaxim 0:f77ad7f72d04 2 * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
IanBenzMaxim 0:f77ad7f72d04 3 *
IanBenzMaxim 0:f77ad7f72d04 4 * Permission is hereby granted, free of charge, to any person obtaining a
IanBenzMaxim 0:f77ad7f72d04 5 * copy of this software and associated documentation files (the "Software"),
IanBenzMaxim 0:f77ad7f72d04 6 * to deal in the Software without restriction, including without limitation
IanBenzMaxim 0:f77ad7f72d04 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
IanBenzMaxim 0:f77ad7f72d04 8 * and/or sell copies of the Software, and to permit persons to whom the
IanBenzMaxim 0:f77ad7f72d04 9 * Software is furnished to do so, subject to the following conditions:
IanBenzMaxim 0:f77ad7f72d04 10 *
IanBenzMaxim 0:f77ad7f72d04 11 * The above copyright notice and this permission notice shall be included
IanBenzMaxim 0:f77ad7f72d04 12 * in all copies or substantial portions of the Software.
IanBenzMaxim 0:f77ad7f72d04 13 *
IanBenzMaxim 0:f77ad7f72d04 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
IanBenzMaxim 0:f77ad7f72d04 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
IanBenzMaxim 0:f77ad7f72d04 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IanBenzMaxim 0:f77ad7f72d04 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
IanBenzMaxim 0:f77ad7f72d04 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
IanBenzMaxim 0:f77ad7f72d04 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
IanBenzMaxim 0:f77ad7f72d04 20 * OTHER DEALINGS IN THE SOFTWARE.
IanBenzMaxim 0:f77ad7f72d04 21 *
IanBenzMaxim 0:f77ad7f72d04 22 * Except as contained in this notice, the name of Maxim Integrated
IanBenzMaxim 0:f77ad7f72d04 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
IanBenzMaxim 0:f77ad7f72d04 24 * Products, Inc. Branding Policy.
IanBenzMaxim 0:f77ad7f72d04 25 *
IanBenzMaxim 0:f77ad7f72d04 26 * The mere transfer of this software does not imply any licenses
IanBenzMaxim 0:f77ad7f72d04 27 * of trade secrets, proprietary technology, copyrights, patents,
IanBenzMaxim 0:f77ad7f72d04 28 * trademarks, maskwork rights, or any other form of intellectual
IanBenzMaxim 0:f77ad7f72d04 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
IanBenzMaxim 0:f77ad7f72d04 30 * ownership rights.
IanBenzMaxim 0:f77ad7f72d04 31 *******************************************************************************/
IanBenzMaxim 0:f77ad7f72d04 32
IanBenzMaxim 3:f818ea5172ed 33 /// @file
IanBenzMaxim 3:f818ea5172ed 34 /// Error handling constructs similar std::error_code, std::error_condition, and
IanBenzMaxim 3:f818ea5172ed 35 /// std::error_category.
IanBenzMaxim 3:f818ea5172ed 36
IanBenzMaxim 0:f77ad7f72d04 37 #ifndef MaximInterface_system_error
IanBenzMaxim 0:f77ad7f72d04 38 #define MaximInterface_system_error
IanBenzMaxim 0:f77ad7f72d04 39
IanBenzMaxim 0:f77ad7f72d04 40 #include <string>
IanBenzMaxim 0:f77ad7f72d04 41 #include <MaximInterface/Utilities/Export.h>
IanBenzMaxim 0:f77ad7f72d04 42 #include "Uncopyable.hpp"
IanBenzMaxim 0:f77ad7f72d04 43
IanBenzMaxim 0:f77ad7f72d04 44 namespace MaximInterface {
IanBenzMaxim 0:f77ad7f72d04 45
IanBenzMaxim 0:f77ad7f72d04 46 class error_condition;
IanBenzMaxim 0:f77ad7f72d04 47 class error_code;
IanBenzMaxim 0:f77ad7f72d04 48
IanBenzMaxim 0:f77ad7f72d04 49 class error_category : private Uncopyable {
IanBenzMaxim 0:f77ad7f72d04 50 public:
IanBenzMaxim 0:f77ad7f72d04 51 virtual ~error_category() {}
IanBenzMaxim 0:f77ad7f72d04 52
IanBenzMaxim 0:f77ad7f72d04 53 virtual const char * name() const = 0;
IanBenzMaxim 0:f77ad7f72d04 54 MaximInterface_EXPORT virtual error_condition
IanBenzMaxim 0:f77ad7f72d04 55 default_error_condition(int code) const;
IanBenzMaxim 0:f77ad7f72d04 56 MaximInterface_EXPORT virtual bool
IanBenzMaxim 0:f77ad7f72d04 57 equivalent(int code, const error_condition & condition) const;
IanBenzMaxim 0:f77ad7f72d04 58 MaximInterface_EXPORT virtual bool equivalent(const error_code & code,
IanBenzMaxim 0:f77ad7f72d04 59 int condition) const;
IanBenzMaxim 0:f77ad7f72d04 60 virtual std::string message(int condition) const = 0;
IanBenzMaxim 0:f77ad7f72d04 61 };
IanBenzMaxim 0:f77ad7f72d04 62 inline bool operator==(const error_category & lhs, const error_category & rhs) {
IanBenzMaxim 0:f77ad7f72d04 63 return &lhs == &rhs;
IanBenzMaxim 0:f77ad7f72d04 64 }
IanBenzMaxim 0:f77ad7f72d04 65 inline bool operator!=(const error_category & lhs, const error_category & rhs) {
IanBenzMaxim 0:f77ad7f72d04 66 return !operator==(lhs, rhs);
IanBenzMaxim 0:f77ad7f72d04 67 }
IanBenzMaxim 0:f77ad7f72d04 68 inline bool operator<(const error_category & lhs, const error_category & rhs) {
IanBenzMaxim 0:f77ad7f72d04 69 return &lhs < &rhs;
IanBenzMaxim 0:f77ad7f72d04 70 }
IanBenzMaxim 0:f77ad7f72d04 71
IanBenzMaxim 0:f77ad7f72d04 72 MaximInterface_EXPORT const error_category & system_category();
IanBenzMaxim 0:f77ad7f72d04 73
IanBenzMaxim 0:f77ad7f72d04 74 class error_condition {
IanBenzMaxim 0:f77ad7f72d04 75 public:
IanBenzMaxim 0:f77ad7f72d04 76 error_condition() : value_(0), category_(&system_category()) {}
IanBenzMaxim 0:f77ad7f72d04 77 error_condition(int value, const error_category & category)
IanBenzMaxim 0:f77ad7f72d04 78 : value_(value), category_(&category) {}
IanBenzMaxim 0:f77ad7f72d04 79
IanBenzMaxim 0:f77ad7f72d04 80 void assign(int value, const error_category & category) {
IanBenzMaxim 0:f77ad7f72d04 81 value_ = value;
IanBenzMaxim 0:f77ad7f72d04 82 category_ = &category;
IanBenzMaxim 0:f77ad7f72d04 83 }
IanBenzMaxim 0:f77ad7f72d04 84 void clear() {
IanBenzMaxim 0:f77ad7f72d04 85 value_ = 0;
IanBenzMaxim 0:f77ad7f72d04 86 category_ = &system_category();
IanBenzMaxim 0:f77ad7f72d04 87 }
IanBenzMaxim 0:f77ad7f72d04 88 int value() const { return value_; }
IanBenzMaxim 0:f77ad7f72d04 89 const error_category & category() const { return *category_; }
IanBenzMaxim 0:f77ad7f72d04 90 std::string message() const { return category().message(value()); }
IanBenzMaxim 0:f77ad7f72d04 91 operator bool() const { return value() != 0; }
IanBenzMaxim 0:f77ad7f72d04 92
IanBenzMaxim 0:f77ad7f72d04 93 private:
IanBenzMaxim 0:f77ad7f72d04 94 int value_;
IanBenzMaxim 0:f77ad7f72d04 95 const error_category * category_;
IanBenzMaxim 0:f77ad7f72d04 96 };
IanBenzMaxim 0:f77ad7f72d04 97 inline bool operator==(const error_condition & lhs,
IanBenzMaxim 0:f77ad7f72d04 98 const error_condition & rhs) {
IanBenzMaxim 0:f77ad7f72d04 99 return (lhs.value() == rhs.value()) && (lhs.category() == rhs.category());
IanBenzMaxim 0:f77ad7f72d04 100 }
IanBenzMaxim 0:f77ad7f72d04 101 inline bool operator!=(const error_condition & lhs,
IanBenzMaxim 0:f77ad7f72d04 102 const error_condition & rhs) {
IanBenzMaxim 0:f77ad7f72d04 103 return !operator==(lhs, rhs);
IanBenzMaxim 0:f77ad7f72d04 104 }
IanBenzMaxim 0:f77ad7f72d04 105 inline bool operator<(const error_condition & lhs,
IanBenzMaxim 0:f77ad7f72d04 106 const error_condition & rhs) {
IanBenzMaxim 0:f77ad7f72d04 107 return (lhs.category() < rhs.category()) ||
IanBenzMaxim 0:f77ad7f72d04 108 ((lhs.category() == rhs.category()) && (lhs.value() < rhs.value()));
IanBenzMaxim 0:f77ad7f72d04 109 }
IanBenzMaxim 0:f77ad7f72d04 110
IanBenzMaxim 0:f77ad7f72d04 111 class error_code {
IanBenzMaxim 0:f77ad7f72d04 112 public:
IanBenzMaxim 0:f77ad7f72d04 113 error_code() : value_(0), category_(&system_category()) {}
IanBenzMaxim 0:f77ad7f72d04 114 error_code(int value, const error_category & category)
IanBenzMaxim 0:f77ad7f72d04 115 : value_(value), category_(&category) {}
IanBenzMaxim 0:f77ad7f72d04 116
IanBenzMaxim 0:f77ad7f72d04 117 void assign(int value, const error_category & category) {
IanBenzMaxim 0:f77ad7f72d04 118 value_ = value;
IanBenzMaxim 0:f77ad7f72d04 119 category_ = &category;
IanBenzMaxim 0:f77ad7f72d04 120 }
IanBenzMaxim 0:f77ad7f72d04 121 void clear() {
IanBenzMaxim 0:f77ad7f72d04 122 value_ = 0;
IanBenzMaxim 0:f77ad7f72d04 123 category_ = &system_category();
IanBenzMaxim 0:f77ad7f72d04 124 }
IanBenzMaxim 0:f77ad7f72d04 125 int value() const { return value_; }
IanBenzMaxim 0:f77ad7f72d04 126 const error_category & category() const { return *category_; }
IanBenzMaxim 0:f77ad7f72d04 127 error_condition default_error_condition() const {
IanBenzMaxim 0:f77ad7f72d04 128 return category().default_error_condition(value());
IanBenzMaxim 0:f77ad7f72d04 129 }
IanBenzMaxim 0:f77ad7f72d04 130 std::string message() const { return category().message(value()); }
IanBenzMaxim 0:f77ad7f72d04 131 operator bool() const { return value() != 0; }
IanBenzMaxim 0:f77ad7f72d04 132
IanBenzMaxim 0:f77ad7f72d04 133 private:
IanBenzMaxim 0:f77ad7f72d04 134 int value_;
IanBenzMaxim 0:f77ad7f72d04 135 const error_category * category_;
IanBenzMaxim 0:f77ad7f72d04 136 };
IanBenzMaxim 0:f77ad7f72d04 137 inline bool operator==(const error_code & lhs, const error_code & rhs) {
IanBenzMaxim 0:f77ad7f72d04 138 return (lhs.value() == rhs.value()) && (lhs.category() == rhs.category());
IanBenzMaxim 0:f77ad7f72d04 139 }
IanBenzMaxim 0:f77ad7f72d04 140 inline bool operator!=(const error_code & lhs, const error_code & rhs) {
IanBenzMaxim 0:f77ad7f72d04 141 return !operator==(lhs, rhs);
IanBenzMaxim 0:f77ad7f72d04 142 }
IanBenzMaxim 0:f77ad7f72d04 143 inline bool operator<(const error_code & lhs, const error_code & rhs) {
IanBenzMaxim 0:f77ad7f72d04 144 return (lhs.category() < rhs.category()) ||
IanBenzMaxim 0:f77ad7f72d04 145 ((lhs.category() == rhs.category()) && (lhs.value() < rhs.value()));
IanBenzMaxim 0:f77ad7f72d04 146 }
IanBenzMaxim 0:f77ad7f72d04 147
IanBenzMaxim 0:f77ad7f72d04 148 template <typename CharT, typename Traits>
IanBenzMaxim 0:f77ad7f72d04 149 std::basic_ostream<CharT, Traits> &
IanBenzMaxim 0:f77ad7f72d04 150 operator<<(std::basic_ostream<CharT, Traits> & os, const error_code & ec) {
IanBenzMaxim 0:f77ad7f72d04 151 os << ec.category().name() << ':' << ec.value();
IanBenzMaxim 0:f77ad7f72d04 152 return os;
IanBenzMaxim 0:f77ad7f72d04 153 }
IanBenzMaxim 0:f77ad7f72d04 154
IanBenzMaxim 0:f77ad7f72d04 155 inline bool operator==(const error_code & lhs, const error_condition & rhs) {
IanBenzMaxim 0:f77ad7f72d04 156 return lhs.category().equivalent(lhs.value(), rhs) ||
IanBenzMaxim 0:f77ad7f72d04 157 rhs.category().equivalent(lhs, rhs.value());
IanBenzMaxim 0:f77ad7f72d04 158 }
IanBenzMaxim 0:f77ad7f72d04 159 inline bool operator!=(const error_code & lhs, const error_condition & rhs) {
IanBenzMaxim 0:f77ad7f72d04 160 return !operator==(lhs, rhs);
IanBenzMaxim 0:f77ad7f72d04 161 }
IanBenzMaxim 0:f77ad7f72d04 162 inline bool operator==(const error_condition & lhs, const error_code & rhs) {
IanBenzMaxim 0:f77ad7f72d04 163 return operator==(rhs, lhs);
IanBenzMaxim 0:f77ad7f72d04 164 }
IanBenzMaxim 0:f77ad7f72d04 165 inline bool operator!=(const error_condition & lhs, const error_code & rhs) {
IanBenzMaxim 0:f77ad7f72d04 166 return !operator==(lhs, rhs);
IanBenzMaxim 0:f77ad7f72d04 167 }
IanBenzMaxim 0:f77ad7f72d04 168
IanBenzMaxim 0:f77ad7f72d04 169 } // namespace MaximInterface
IanBenzMaxim 0:f77ad7f72d04 170
IanBenzMaxim 0:f77ad7f72d04 171 #endif