Absolute C++ (4th Edition) part 45 ppt

... operator is needed when the only data consists of built-in types. b. Same as part a for a copy constructor. c. Same as part a for a destructor. ■ A pointer is a memory address, so a pointer provides ... depending on how your particular compiler works. 9. typedef char* CharArray; 10. cout << "Enter 10 integers:\n"; for (int i = 0; i < 10; i++) cin >> entry[i]; 45...

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... is for the function declaration and the main part of the program to appear in one or more files, with the function declaration before the main part of the program, and for the function definition ... so we will place the function definitions after the main part of the program. If the full function definition is placed before the main part of the program, the function declaration can be...

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... used by C++ for plugging in an argument for a formal parameter when a function is invoked. There are two basic kinds of parameters and therefore two basic plugging-in mecha- nisms in C++. The ... next few subsections describe the call-by-reference mechanism in more detail and also explain the particular functions used in Display 4.2. ■ CALL-BY-REFERENCE MECHANISM IN DETAIL In most situatio...

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... parameter. mixing call-by- reference and call- by-value parameters 04_CH04.fm Page 145 Wednesday, August 13, 2003 12:49 PM Parameters 149 Display 4.5 Buying Pizza (part 1 of 2) 1 //Determines which of two pizza sizes is ... a locally defined constant. 04_CH04.fm Page 147 Wednesday, August 13, 2003 12:49 PM Parameters 145 Tip It is perfectly legitimate to mix call-by-value and call-by-re...

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... gallon (since 43 is 45 - 2): cout << mpg (45, 2) << " miles per gallon"; When C++ sees the function call mpg (45, 2), which has two arguments of type int, C++ first looks ... << mpg (45, 2) << " miles per gallon"; C++ converts the 45 to 45. 0 and the 2 to 2.0 and then performs the division 45. 0/2.0 to obtain the value returned, whic...

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... 187 Functions That Return an Array 188 Example: Production Graph 188 5.3 PROGRAMMING WITH ARRAYS 194 Partially Filled Arrays 194 Tip: Do Not Skimp on Formal Parameters 194 Example: Searching an Array ... rather than write a completely new program to test each function. For Display 4.9 Driver Program (part 2 of 2) S AMPLE D IALOGUE \ Enter diameter and price: 13 14.75 Unit price is: $0.111...

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... 189 production figures for each department, such as the teaspoon department, soup spoon depart- ment, plain cocktail spoon department, colored cocktail spoon department, and so forth. More- over, ... PM Arrays in Functions 191 Display 5.4 Production Graph Program (part 3 of 4) 50 cout << "Enter number of units produced by each department.\n" 51 << "Append a negati...

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... 05_CH05.fm Page 219 Wednesday, August 13, 2003 12:51 PM 218 Arrays bers in the partially filled array. Since a partially filled array requires two arguments, the function will actually have ... function called deleteRepeats that has a partially filled array of characters as a formal parameter and that deletes all repeated letters from the array. Since a partially filled array requires tw...

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... Constructors 273 Display 7.2 Bank Account Class (part 5 of 5) 161 return static_cast<int>(amount); 162 } 163 //Uses cmath: 164 int BankAccount::centsPart(double amount) 165 { 166 double doubleCents ... (percent/100.0); 180 } S AMPLE D IALOGUE account1 initialized as follows: Account balance: $1 345. 52 Rate: 2.3% account2 initialized as follows: Account balance: $0.00 Rate: 0% accou...

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... //negative cents. Negative $4.50 is represented as -4 and -50. 25 int dollarsPart(double amount) const; 26 int centsPart(double amount) const; 27 int round(double number) const; 28 }; 29 int main( ... //negative cents. Negative $4.50 is represented as -4 and -50. 25 int dollarsPart(double amount) const; 26 int centsPart(double amount) const; 27 int round(double number) const; 28 }; 29 int ma...

Ngày tải lên: 04/07/2014, 05:21