DEENESPTFRRUARHIKOZHNL

类 ara::diag::DiagnosticSovdRecordContentElementDataConstIterator

[SWS_DM_02264] Upstream: RS_Diag_04260

class DiagnosticSovdRecordContentElementDataConstIterator {...};

Const iterator for a DiagnosticSovdRecordContentElementData.

Header-Datei#include "ara/diag/diagnostic_sovd_content_element_data.h"
Forwarding-Header#include "ara/diag/diag_fwd.h"
Scopenamespace ara::diag

用户指南人工智能生成

实现对诊断 SOVD Record 内容元素的只读、线程安全顺序访问。
AI 生成 未审核 模型: gemini-3.8-flash-medium · 推理强度: medium · 温度: 不可控 · 提示词: 3164759db88e 来源 未决问题(2)
译自德文指南gemini-3.8-flash-low · 2026-10-13 · 德文原文

实现对诊断 SOVD Record 内容元素的只读、线程安全顺序访问。

根据 [SWS_DM_02264],类 ara::diag::DiagnosticSovdRecordContentElementDataConstIterator 充当常量前向迭代器,用于只读遍历 SOVD Record 内容元素。它提供了用于相等性检查、前进以及解引用至 DiagnosticSovdContentElementDataWithKey 的运算符([SWS_DM_02265])。由于所有运算符均按 noexcept 实现了异常安全和线程安全,因此调用方有责任避免解引用无效迭代器。

上下文

类 ara::diag::DiagnosticSovdRecordContentElementDataConstIterator 由 AUTOSAR_AP_SWS_Diagnostics §8.60.8 中的 [SWS_DM_02264] 定义。它用作 DiagnosticSovdRecordContentElementData 类型元素的常量前向或输入迭代器,如 AUTOSAR_AP_SWS_Diagnostics §8.60.8 中所述。作为交互伙伴的包括以只读方式遍历 SOVD 数据元素(“Service-Oriented Vehicle Diagnostics”)集合的 diag 模块诊断应用程序,以及在解引用期间迭代器授予访问权限的 DiagnosticSovdContentElementDataWithKey 类型被引用元素([SWS_DM_02265]、[SWS_DM_02266])。

生命周期

迭代器的生命周期通常始于通过 SOVD Record 元素底层数据结构的接口检索迭代器实例(解读:容器推测拥有诸如 cbegin() 和 cend() 之类的方法来提供有效的迭代器实例)。 问题 Q-9c5e4d32ae82e7cf (未决)由于它是不带动态资源管理的纯值或指针包装器,因此迭代器没有显式的销毁机制,且可以被复制或移动。该规范保证迭代器的所有操作均具有异常安全性(exception safe)以及完全的线程安全性(thread-safe)([SWS_DM_02265]、[SWS_DM_02266]、[SWS_DM_02267]、[SWS_DM_02268]、[SWS_DM_02269])。在并发性方面,这意味着对同一迭代器或彼此独立的实例的并发读取访问无需额外的同步措施即可执行。

使用路径

典型使用路径包括在诊断处理例程内对一组 SOVD 元素数据进行迭代遍历。调用方首先通过不等运算符 operator!=([SWS_DM_02268])或相等运算符 operator==([SWS_DM_02267])检查是否已到达序列末尾。只要迭代器有效,应用程序就会对被引用的元素执行读取访问:解引用运算符 operator* 返回对 DiagnosticSovdContentElementDataWithKey 的常量引用([SWS_DM_02265]),而箭头运算符 operator-> 返回指向该常量对象的指针([SWS_DM_02266])。随后,前缀递增运算符 operator++ 将迭代器向前推进一个位置,并返回对递增后迭代器的引用([SWS_DM_02269])。

使用 DiagnosticSovdRecordContentElementDataConstIterator 进行遍历应用Iterator: DiagnosticSovdRecordContentElementDataConstIteratorElement: DiagnosticSovdContentElementDataWithKeyUse Case: 检查是否到达序列末尾operator!=(endIterator)bool(true = 仍有元素存在)loopsolange Iterator != endIteratorUse Case: 只读数据访问operator*() 或 operator->()DiagnosticSovdContentElementDataWithKey const& / const*Datenfelder auslesenUse Case: Weiterschaltenoperator++()指向自增后迭代器的引用operator!=(endIterator)bool

时序图:使用 Const 迭代器顺序遍历 SOVD Record 内容元素的典型流程。来源:[SWS_DM_02265]、[SWS_DM_02266]、[SWS_DM_02267]、[SWS_DM_02268]、[SWS_DM_02269]

错误场景

ara::diag::DiagnosticSovdRecordContentElementDataConstIterator 的所有成员函数均使用说明符 noexcept 声明([SWS_DM_02265]、[SWS_DM_02266]、[SWS_DM_02267]、[SWS_DM_02268]、[SWS_DM_02269])。无论是 operator*、operator-> 还是比较运算符,都不会抛出 C++ 异常,也不会返回 ara::core::Result 错误结构体。无错误调用 operator*、operator-> 和 operator++ 的前置条件是迭代器的有效性:解引用或递增尾后(Past-the-End)迭代器可能会导致未定义行为(解读:接口定义不包含针对无效解引用的运行时检查)。 问题 Q-e26c9aa50597bf18 (未决)因此,使用者必须确保在访问前始终与尾后迭代器执行终止比较。

本指南完全基于 AUTOSAR AP R25-11 的规范要求。

成员图

类图

Hohle Dreieckspfeile = Vererbung (zeigt zur Basisklasse); Klicken öffnet die jeweilige Klassenseite.

G nara__diag__DiagnosticSovdRecordContentElementDataConstIterator644 DiagnosticSovdRecordContentElementDataConstIterator + DiagnosticSovdRecord() + operator*() + operator==()

详细视图

请在大纲中选择一个条目。

方法

Dereference operator.

重载 DiagnosticSovdRecord 3
auto operator-> () noexcept -> DiagnosticSovdContentElementDataWithKey const *; SWS_DM_02266
auto operator!= (DiagnosticSovdRecordContentElementDataConstIterator const &other) noexcept -> bool; SWS_DM_02268
auto operator++ () noexcept -> DiagnosticSovdRecordContentElementData ConstIterator &; SWS_DM_02269

运算符

operator* 函数

Dereference operator.

auto operator* () noexcept -> DiagnosticSovdContentElementDataWithKey const &;
operator== 函数

Equal operator.

auto operator== (DiagnosticSovdRecordContentElementDataConstIterator const &other) noexcept -> bool;

方法文档

函数 DiagnosticSovdRecord [SWS_DM_02266] Upstream: RS_Diag_04260

auto operator-> () noexcept -> DiagnosticSovdContentElementDataWithKey const *;

Dereference operator.

AI 生成 未审核 模型: gemini-3.8-flash-medium · 推理强度: medium · 温度: 不可控 · 提示词: 322ae59e5998 来源 未决问题(1)
译自德文指南gemini-3.8-flash-low · 2026-10-13 · 德文原文

使用

类 ara::diag::DiagnosticSovdRecordContentElementDataConstIterator 的成员函数 operator->([SWS_DM_02264])用作解引用运算符,以对 SOVD 数据元素进行只读访问([SWS_DM_02266]、AUTOSAR_AP_SWS_Diagnostics §8.60.8.1.1.4 “operator->”)。该调用无参数且通过头文件 ara/diag/diagnostic_sovd_content_element_data.h 同步进行。作为返回值,该函数提供一个指向带有键的被引用元素数据的 DiagnosticSovdContentElementDataWithKey const * 类型常量指针([SWS_DM_02266])。

错误处理

该函数声明为 noexcept,并在规范中归类为异常安全(exception safe)([SWS_DM_02266])。它既不会引发 C++ 异常,也不会通过 ara::core::Result 返回错误码。解释:解引用未初始化、无效或已处于范围末尾的迭代器推测会导致未定义行为,因此调用者必须在调用运算符之前确保其有效性。 问题 Q-4c149c4fb2d68f33 (未决)

并发性与限制

根据规范,该访问被定义为线程安全(thread-safe)([SWS_DM_02266])。由于该操作仅授予对底层元素的只读访问权限,因此多个线程可以通过常量迭代器并发解引用相同的数据。

相互作用

该函数与迭代器及诊断数据结构的其他接口紧密配合工作:

  • 导航与比较:在遍历记录内容时,迭代器通常使用 operator++([SWS_DM_02269])推进,并使用 operator!=([SWS_DM_02268])与尾迭代器进行比对。
  • 范围边界:相应的常量范围末尾可以通过类 DiagnosticSovdContentElementData 的 RecordCEnd([SWS_DM_02362])确定。
  • 非常量替代方案:对于修改性访问,可以使用类 DiagnosticSovdRecordContentElementDataIterator 的对等项 operator->([SWS_DM_02260]),其可以通过 Find([SWS_DM_02285])或 RecordEnd([SWS_DM_02360])等函数获取。

本使用说明由 AI 基于 AUTOSAR 规范 R25-11 生成。

实现者指南即将推出(复杂度 I2)

Header-Datei#include "ara/diag/diagnostic_sovd_content_element_data.h"
Scopeclass ara::diag::DiagnosticSovdRecordContentElementDataConstIterator
Exception-Sicherheitexception safe
Thread-Sicherheitthread-safe

Rückgabewert

TypBeschreibung
DiagnosticSovdContentElementDataWithKeyReturn a pointer to the DiagnosticSovdAbstractContentDataWith Key const *

Request a governed re-review of this record. The record is not changed immediately.

Record
AUTOSAR/AP/record/SWS_DM_02266
Status
valid/unmigrated
Version
AUTOSAR/AP/record/SWS_DM_02266@rel:R25-11#dac8658f
Content hash
dac8658f
Source
https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_02266
Status: valid/unmigrated Version: rel:R25-11#4fa0d923 Versionshistorie & Revisions (1 transition)
Current State
valid/unmigrated
Reason
mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign
2026-08-13-status-backfill
Active Version
AUTOSAR/AP/record/SWS_DM_02266@rel:R25-11#4fa0d923
Point-in-Time History:
DateActorTransitionReason / RationaleCampaign
2026-08-13toolnone → valid/unmigratedmechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record2026-08-13-status-backfill

函数 DiagnosticSovdRecord [SWS_DM_02268] Upstream: RS_Diag_04260

auto operator!= (DiagnosticSovdRecordContentElementDataConstIterator const &other) noexcept -> bool;

Not equal operator.

Header-Datei#include "ara/diag/diagnostic_sovd_content_element_data.h"
Scopeclass ara::diag::DiagnosticSovdRecordContentElementDataConstIterator
Exception-Sicherheitexception safe
Thread-Sicherheitthread-safe

Parameter (in)

ParameterBeschreibung
otherThe other iterator to test equality with

Rückgabewert

TypBeschreibung
boolTrue if operator are equals, false otherwise

Request a governed re-review of this record. The record is not changed immediately.

Record
AUTOSAR/AP/record/SWS_DM_02268
Status
valid/unmigrated
Version
AUTOSAR/AP/record/SWS_DM_02268@rel:R25-11#8228f48b
Content hash
8228f48b
Source
https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_02268
Status: valid/unmigrated Version: rel:R25-11#069b7496 Versionshistorie & Revisions (1 transition)
Current State
valid/unmigrated
Reason
mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign
2026-08-13-status-backfill
Active Version
AUTOSAR/AP/record/SWS_DM_02268@rel:R25-11#069b7496
Point-in-Time History:
DateActorTransitionReason / RationaleCampaign
2026-08-13toolnone → valid/unmigratedmechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record2026-08-13-status-backfill

函数 DiagnosticSovdRecord [SWS_DM_02269] Upstream: RS_Diag_04260

auto operator++ () noexcept -> DiagnosticSovdRecordContentElementData ConstIterator &;

Increment operator.

Header-Datei#include "ara/diag/diagnostic_sovd_content_element_data.h"
Scopeclass ara::diag::DiagnosticSovdRecordContentElementDataConstIterator
Exception-Sicherheitexception safe
Thread-Sicherheitthread-safe

Rückgabewert

TypBeschreibung
DiagnosticSovdRecordContentElementDataConstIteratorReference to the incremented iterator

Request a governed re-review of this record. The record is not changed immediately.

Record
AUTOSAR/AP/record/SWS_DM_02269
Status
valid/unmigrated
Version
AUTOSAR/AP/record/SWS_DM_02269@rel:R25-11#33dbcef2
Content hash
33dbcef2
Source
https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_02269
Status: valid/unmigrated Version: rel:R25-11#56e88cdf Versionshistorie & Revisions (1 transition)
Current State
valid/unmigrated
Reason
mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign
2026-08-13-status-backfill
Active Version
AUTOSAR/AP/record/SWS_DM_02269@rel:R25-11#56e88cdf
Point-in-Time History:
DateActorTransitionReason / RationaleCampaign
2026-08-13toolnone → valid/unmigratedmechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record2026-08-13-status-backfill

函数 operator* [SWS_DM_02265] Upstream: RS_Diag_04260

auto operator* () noexcept -> DiagnosticSovdContentElementDataWithKey const &;

Dereference operator.

Header-Datei#include "ara/diag/diagnostic_sovd_content_element_data.h"
Scopeclass ara::diag::DiagnosticSovdRecordContentElementDataConstIterator
Exception-Sicherheitexception safe
Thread-Sicherheitthread-safe

Rückgabewert

TypBeschreibung
DiagnosticSovdContentElementDataWithKeyconstReturn a view on the content element

Request a governed re-review of this record. The record is not changed immediately.

Record
AUTOSAR/AP/record/SWS_DM_02265
Status
valid/unmigrated
Version
AUTOSAR/AP/record/SWS_DM_02265@rel:R25-11#c6cb58d5
Content hash
c6cb58d5
Source
https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_02265
Status: valid/unmigrated Version: rel:R25-11#3f32ca4d Versionshistorie & Revisions (1 transition)
Current State
valid/unmigrated
Reason
mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign
2026-08-13-status-backfill
Active Version
AUTOSAR/AP/record/SWS_DM_02265@rel:R25-11#3f32ca4d
Point-in-Time History:
DateActorTransitionReason / RationaleCampaign
2026-08-13toolnone → valid/unmigratedmechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record2026-08-13-status-backfill

函数 operator== [SWS_DM_02267] Upstream: RS_Diag_04260

auto operator== (DiagnosticSovdRecordContentElementDataConstIterator const &other) noexcept -> bool;

Equal operator.

Header-Datei#include "ara/diag/diagnostic_sovd_content_element_data.h"
Scopeclass ara::diag::DiagnosticSovdRecordContentElementDataConstIterator
Exception-Sicherheitexception safe
Thread-Sicherheitthread-safe

Parameter (in)

ParameterBeschreibung
otherThe other iterator to test equality with

Rückgabewert

TypBeschreibung
boolTrue if operator are equals, false otherwise

Request a governed re-review of this record. The record is not changed immediately.

Record
AUTOSAR/AP/record/SWS_DM_02267
Status
valid/unmigrated
Version
AUTOSAR/AP/record/SWS_DM_02267@rel:R25-11#14c2988e
Content hash
14c2988e
Source
https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_02267
Status: valid/unmigrated Version: rel:R25-11#d38e7bd6 Versionshistorie & Revisions (1 transition)
Current State
valid/unmigrated
Reason
mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign
2026-08-13-status-backfill
Active Version
AUTOSAR/AP/record/SWS_DM_02267@rel:R25-11#d38e7bd6
Point-in-Time History:
DateActorTransitionReason / RationaleCampaign
2026-08-13toolnone → valid/unmigratedmechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record2026-08-13-status-backfill