A Complete Guide to Programming in C++ part 38 ppt

... a Pointer in an Array As you already know, the addition pv + i results in a pointer to the array element v[i]. You can use a statement such as pv = pv + i; to store the pointer in the vari- able ... word: REGAL The "reversed" word: LAGER ARRAYS AND POINTERS (1) ■ 351 ᮀ Name and Address of an Array In C++ the name of an array is also the starting address for that...

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... the C programming language: ++ is the increment operator in C. As early as 1989 an ANSI Committee (American National Standards Institute) was founded to standardize the C++ programming language. ... functionality of the C programming language. This means that you have all the features that are avail- able in C: ■ universally usable modular programs ■ efficient, close to the ma...

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... types. A distinction is made between unary and binary operators. A unary operator has only one operand, whereas a binary operator has two. ᮀ Binary Arithmetic Operators Arithmetic operators are ... TYPES ■ RELATIONAL OPERATORS The relational operators Precedence of relational operators Examples for comparisons: Operator Significance less than less than or equal to greater than geater...

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... &birthday; // Pointer to birthday pDate->print(); Date &holiday = aDate; // Reference to aDate. holiday.init( 1, 5, 2000); // Writing to aDate. aDate.print(); // holiday.print(); return ... class. The class now has two constructors. ᮀ Definition Since a constructor has the same name as its class, the definition of a constructor always begins with Class_name::Class_name I...

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... character '\0' in a char array. When you define an array, you can use a string constant to initialize the array. Example: char name[] = "Hugo"; This definition is equivalent ... 0; } ■ INITIALIZING ARRAYS Sample program 326 ■ CHAPTER 16 ARRAYS String text Index: 01234567891011 'H' 'e' 'l' 'l' 'o' ' ' &apos...

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... -d; numerator = n; denominator = d; } Fraction operator+(const Fraction& a, const Fraction& b) { Fraction temp; temp.denominator = a. denominator * b.denominator; temp.numerator = a. numerator*b.denominator + ... b: Fraction temp; temp.numerator = a. numerator * b.denominator; temp.denominator = a. denominator * b.numerator; if( temp.denominator < 0 ) temp.numerator = -temp.nu...

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... corresponding mem- ber in the base class. This situation is similar to the one seen for local and global variables. A local variable will mask a previously defined global variable with the same name. ᮀ ... rede- fined. The statement Example: cabrio.display(); also outputs the additional data members passCarType and sunRoof. However, in the case of the van object in the Car class,...

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... contains a base initializer or not. Base initializers for virtual indirect base classes defined in the constructor of a direct base class are ignored. If the base classes PassCar and Van also contained ... PassCar also has the Car class as a virtual base class. ■ you cannot change the declaration of an indirect base class to virtual. You must therefore decide what classes are to b...

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... ios class uses state flags to define the various states a file can assume. Each state flag corresponds to a single bit in a status-word, which is represented by the iostate type in the ios class. ... ios::badbit ). . . The clear() method is available for clearing the status-word. If you call clear() without any arguments, all the state flags are cleared. An argument of the iosta...

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... name of the customer as a char array with a length of 30. Supply default values for the constructor declaration and additionally declare the read_at() and write_at() methods that read customer ... endl; while( f.read((char*)&id, sizeof(TypeId)) ) { switch(id) { case ACCOUNT: pAcc = &acc; break; case DEP_ACC: pAcc = &depAcc; break; case SAV_ACC: pAcc = &savAcc; break; def...

Ngày tải lên: 06/07/2014, 17:21