Absolute C++ (phần 17) pps
Absolute C++ (phần 17) pps
... parameter (or parameters). Even a straightforward tem- plate class like Pair does not work well with absolutely all types T. The type Pair<T> will not be well behaved unless the assignment operator ... cat. Therefore, Garfield is mischievous. A Short Lesson on Syllogisms INTRODUCTION This chapter discusses C++ templates, which allow you to define functions and classes that have par...
Ngày tải lên: 07/07/2014, 05:20
Absolute C++ (phần 3) pps
... no intuitive meaning, but C++ converts the int values to bool and then evaluates the && and ! operations. Thus, C++ will evaluate this mess. Recall that in C++, any nonzero integer converts ... pow(2.0,3.0) 8.0 cmath abs Absolute value for int int int abs(-7) abs(7) 7 7 cstdlib labs Absolute value for long long long labs(-70000) labs(70000) 70000 70000 cstdlib fabs Abs...
Ngày tải lên: 07/07/2014, 05:20
Absolute C++ (phần 8) ppsx
... usual operator syntax, x + 7 , that C++ uses for types such as int and dou- ble . And one way to view a high-level language, such as C++, is as a way to make people comfortable ... Thus, this syntactic sugar is probably a good idea; at the least, it is a well-entrenched idea. In C++ you can overload the operators, such as + and == , so that they work with oper-...
Ngày tải lên: 07/07/2014, 05:20
Absolute C++ (phần 11) ppsx
... confused and place the * on the int, the problem is the same but is more difficult to notice. C++ allows you to place the * on the type name, such as int, so that the following is legal: int* ... variables, but in fact only p1 is a pointer variable; p2 is an ordinary int variable. As far as the C++ compiler is concerned, the * that is attached to the identifier int may as well be...
Ngày tải lên: 07/07/2014, 05:20
Absolute C++ (phần 15) ppsx
... 0; } int mystery(int n) { 570 Recursion CODING Now we can routinely translate the pseudocode into C++ code. The result is shown in Display 13.6. The function search is an implementation of the ... 13.2 Thinking Recursively 569 Our pseudocode is a bit too imprecise to be easily translated into C++ code. The problem has to do with the recursive calls. There are two recursive calls shown:...
Ngày tải lên: 07/07/2014, 05:20
Absolute C++ (phần 1) ppt
... PM 1 C++ Basics 1.1 INTRODUCTION TO C++ 2 Origins of the C++ Language 2 C++ and Object-Oriented Programming 3 The Character of C++ 3 C++ Terminology 4 A Sample C++ Program 4 1.2 VARIABLES, EXPRESSIONS, ... developed C++ in the early 1980s. Stroustrup designed C++ to be a better C. Most of C is a subset of C++, and so most C programs are also C++ programs. (The reverse is...
Ngày tải lên: 07/07/2014, 05:20
Absolute C++ (phần 2) potx
... C AN B E U SED AS B OOLEAN V ALUES C++ sometimes uses integers as if they were Boolean values and bool values as if they were inte- gers. In particular, C++ converts the integer 1 to true and ... of a for statement may be any C++ expressions; therefore, they may involve more (or even fewer) than one variable, and the variables may be of any type. 1 The C++ standard does speci...
Ngày tải lên: 07/07/2014, 05:20