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Chapter 4 Procedural Abstraction and Functions That Return a Value

Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Top Down Design ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Benefits of Top Down Design ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Predefined Functions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Function Calls ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.1

Function Call Syntax ,[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Function Libraries ,[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Other Predefined Functions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.2

Random Number Generation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 1-

Random Numbers ,[object Object],[object Object],[object Object],[object Object],[object Object],Slide 1-

Type Casting ,[object Object],[object Object],[object Object],[object Object],Slide 4-

Type Cast Example ,[object Object],[object Object],[object Object],[object Object],Slide 4- Integer division occurs before type cast

Old Style Type Cast ,[object Object],[object Object],Slide 4-

Section 4.2 Conclusion ,[object Object],[object Object],[object Object],[object Object],Slide 4-

4.3 Programmer-Defined Functions

Programmer-Defined Functions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4- ;

Function Declaration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Function Definition ,[object Object],[object Object],[object Object],Slide 4- function header function body

The Return Statement ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

The Function Call ,[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.3

Function Call Details ,[object Object],[object Object],[object Object],Slide 4- Display 4.4

Alternate Declarations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Order of Arguments ,[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.5 (1) Display 4.5 (2)

Function Definition Syntax ,[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.6

Placing Definitions ,[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

bool Return Values ,[object Object],[object Object],[object Object],[object Object],[object Object],Slide 3-

Function appropriate ,[object Object],Slide 3-

Procedural Abstraction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Information Hiding ,[object Object],[object Object],[object Object],Slide 4-

Function Implementations and The Black Box ,[object Object],[object Object],[object Object],Slide 4- Display 4.7

Procedural Abstraction and C++ ,[object Object],[object Object],[object Object],Slide 4-

Procedural Abstraction and Functions ,[object Object],[object Object],[object Object],[object Object],Slide 4-

Formal Parameter Names ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.8

Case Study Buying Pizza ,[object Object],[object Object],[object Object],[object Object],Slide 4-

Buying Pizza Problem Definition ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Buying Pizza Problem Analysis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Buying Pizza Function Analysis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Buying Pizza unitprice Declaration ,[object Object],Slide 4-

Buying Pizza Algorithm Design ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Buying Pizza unitprice Algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Buying Pizza unitprice Pseudocode ,[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Buying Pizza The Calls of unitprice ,[object Object],[object Object],Slide 4-

Buying Pizza First try at unitprice ,[object Object],[object Object],Slide 4-

Buying Pizza Second try at unitprice ,[object Object],[object Object],[object Object],Slide 4- Display 4.10 (1) Display 4.10 (2)

Program Testing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

Use Pseudocode ,[object Object],[object Object],[object Object],[object Object],Slide 4-

Local Variables ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.11 (1) Display 4.11 (2)

Global Constants ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.12 (1) Display 4.12 (2)

Global Variables ,[object Object],[object Object],[object Object],Slide 4-

Formal Parameters are Local Variables ,[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.13 (1) Display 4.13 (2)

Block Scope ,[object Object],[object Object],[object Object],Slide 1- Display 4.14

Namespaces Revisited ,[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.15 (1) Display 4.15 (2)

Example: Factorial ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.16

4.6 Overloading Function Names

Overloading Function Names ,[object Object],[object Object],[object Object],Slide 4-

Overloading Examples ,[object Object],[object Object],[object Object],Slide 4-

Overloading Details ,[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.17

Overloading Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4- Display 4.18 (1 – 3)

Automatic Type Conversion ,[object Object],[object Object],Slide 4-

Type Conversion Problem ,[object Object],[object Object],Slide 4- Do not use the same function name for unrelated functions

Section 4.6 Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Slide 4-

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