Basics The Rule of Five ## ANDRE KOSTUR ## 20 23 October 01 - 06 ## About Me ## Agenda • Background • Core Guidelines • What is the Rule of Five • Compiler provided functions • What is the Rule of Zero Value-Based Language ## C++ has a lot to think about ## C++ Core Guidelines ### Guideline C.21 is “The Rule of Five” ## Simple String ## Simple String - Constructor struct SString { String(char const * cp) rhs.data_ = nullptr; return *this; } // ... char * data_; }; ## The Rule of Five C.21: "If you define or =delete any copy, move, or destructor function, define or =delete

configured per applica- tion. There is fair agreement in the industry that there is no “one blockchain to rule them all”. Hyperledger Fabric can be configured in multiple ways to satisfy the diverse solution requirements ImplicitMeta) and a Rule. The test network example below shows the Org1 organization definition in the system channel, where the policy Type is Signature and the endorsement policy rule is defined as "OR('Org1MSP Readers: Type: Signature Rule: "OR('Org1MSP.admin', 'Org1MSP.peer', 'Org1MSP.client')" Writers: Type: Signature Rule: "OR('Org1MSP.admin', 'Org1MSP.client')" Admins: Type: Signature Rule: "OR('Org1MSP.admin')"

configured per application. There is fair agreement in the industry that there is no “one blockchain to rule them all”. Hyperledger Fabric can be configured in multiple ways to satisfy the diverse solution requirements ImplicitMeta) and a Rule. The test network example below shows the Org1 organization definition in the system channel, where the policy Type is Signature and the endorsement policy rule is defined as "OR Policies: Readers: Type: Signature Rule: "OR('Org1MSP.admin', 'Org1MSP.peer', 'Org1MSP.client')" Writers: Type: Signature Rule: "OR('Org1MSP.admin', 'Org1MSP

configured per application. There is fair agreement in the industry that there is no “one blockchain to rule them all”. Hyperledger Fabric can be configured in multiple ways to satisfy the diverse solution requirements takes some time to complete (seconds), the application is notified asynchronously, as shown in step five. Later in this section, you’ll learn more about the detailed nature of this ordering process — and example, we see four organizations contributing eight peers to form a network. The channel C connects five of these peers in the network N — P1, P3, P5, P7 and P8. The other peers owned by these organizations

widget2.age << "\n"; std::cout << widget2.gadget << "\n"; ## Rule of Five struct Widget { Widget(); Widget(Widget const& other); Widget(Widget&& gadget ctor: #1 widget 42 widget 42 42 42 widget 42 gadget dtor: #1 ## the Rule of Zero struct Widget { // only value types or managers }; ## Always strive to have the compiler

Hyperledger Fabric 1.4 Documentation

configured per application. There is fair agreement in the industry that there is no “one blockchain to rule them all”. Hyperledger Fabric can be configured in multiple ways to satisfy the diverse solution requirements takes some time to complete (seconds), the application is notified asynchronously, as shown in step five. Later in this section, you’ll learn more about the detailed nature of this ordering process — and example, we see four organizations contributing eight peers to form a network. The channel C connects five of these peers in the network N — P1, P3, P5, P7 and P8. The other peers owned by these organizations

0 码力 | 483 页 | 7.48 MB | 2 年前

3

Hyperledger Fabric 2.2.1 Documentation

configured per application. There is fair agreement in the industry that there is no “one blockchain to rule them all”. Hyperledger Fabric can be configured in multiple ways to satisfy the diverse solution requirements ImplicitMeta) and a Rule. The test network example below shows the Org1 organization definition in the system channel, where the policy Type is Signature and the endorsement policy rule is defined as "OR Policies: Readers: Type: Signature Rule: "OR('Org1MSP.admin', 'Org1MSP.peer', 'Org1MSP.client')" Writers: Type: Signature Rule: "OR('Org1MSP.admin', 'Org1MSP

0 码力 | 601 页 | 9.48 MB | 2 年前

3

Hyperledger Fabric 1.4 Documentation

configured per applica- tion. There is fair agreement in the industry that there is no “one blockchain to rule them all”. Hyperledger Fabric can be configured in multiple ways to satisfy the diverse solution requirements takes some time to complete (seconds), the application is notified asynchronously, as shown in step five. Later in this section, you’ll learn more about the detailed nature of this ordering process — and example, we see four organizations contributing eight peers to form a network. The channel C connects five of these peers in the network N — P1, P3, P5, P7 and P8. The other peers owned by these organizations

0 码力 | 461 页 | 7.37 MB | 2 年前

3

Kotlin Language Documentation 1.3

Foo::class, String::length Do not put a space before ? used to mark a nullable type: String? As a general rule, avoid horizontal alignment of any kind. Renaming an identifier to a name with a different length } } ## Overriding rules In Kotlin, implementation inheritance is regulated by the following rule: if a class inherits multiple implementations of the same member from its immediate superclasses, have inherited from multiple interfaces, and to specify how exactly D should implement them. This rule applies both to methods for which we've inherited a single implementation $ (bar()) $ and multiple

0 码力 | 597 页 | 3.61 MB | 2 年前

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Hyperledger Fabric 2.1 Documentation

configured per application. There is fair agreement in the industry that there is no “one blockchain to rule them all”. Hyperledger Fabric can be configured in multiple ways to satisfy the diverse solution requirements ImplicitMeta) and a Rule. The test network example below shows the Org1 organization definition in the system channel, where the policy Type is Signature and the endorsement policy rule is defined as "OR Policies: Readers: Type: Signature Rule: "OR('Org1MSP.admin', 'Org1MSP.peer', 'Org1MSP.client')" Writers: Type: Signature Rule: "OR('Org1MSP.admin', 'Org1MSP

0 码力 | 633 页 | 9.19 MB | 2 年前

3

Category	When to use	Rule(s)	Special members
Value types	Simple direct values	Rule of Zero