tailieunhanh - A Complete Guide to Programming in C++ part 47

A Complete Guide to Programming in C++ part 47. This book provides both novice and experienced programmers with a comprehensive resource manual for the C++ programming language. Readers gain experience in all aspects of programming, from elementary language concepts to professional software development, with in depth coverage of all the language elements en route. These elements are carefully ordered to help the reader create useful programs every step of the way. | SOLUTIONS 439 ---------------------------------------------------------- Testing the class Fraction. Modules ---------------------------------------------------------- include int main Fraction a 1 3 b 4 cout nSome test re sults n n cout a a endl cout b b endl cout a b a b endl cout a - b a - b endl cout a b a b endl cout a b a b endl cout --a --a endl cout a a endl a Fraction 1 2 cout a 1 2 a a endl a - Fraction 1 2 cout a- 1 2 a a endl cout -b -b endl cout nAnd now an i nput n cin a cout nYour input a endl return 0 This page intentionally left blank chapter Type Conversion for Classes Implicit type conversion occurs in C when an expression cannot be compiled directly but can be compiled after applying a conversion rule. The programmer can stipulate how the compiler will perform implicit type conversion for classes by defining conversion constructors and functions. Finally we discuss ambiguity occurring due to type conversion and how to avoid it. 44