C By Discovery (4th Edition)

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Unformatted text preview: 1 Intermediate Programming CSE 1320 Lecture 19 Chapter 12: 12.1-12.3 Introduction to C++ General purpose language Developed in early 1980s Bjarne Stroustrup Goals Retain power and flexibility of C C is almost a subset of C++ (should compile) Support Object Oriented Programming Stronger type checking More compile-time errors Less run-time errors C++ Stream Output // Inline commenting style #include < iostream.h > int main () { cout << CSE1320\n; return 0; } type ostream Operator overloading insertion operator (ostream << display;) integer bitwise shift to the left (intval << nbits;) Displayed when program ends, buffer is full, program prepares for input, line buffering \n. #include <iostream.h> int main() { int width, height; cout << Area of a Rectangle\n << --------------------------\n\n; cout << Enter the height: ; cin >> height; cout << Enter the width: ; cin >> width; cout << The area is << height*width << \n; return 0; } C++ Stream Input istream extraction operator cin >> height; Fundamental Types Integer types Signed signed char char short int long Unsigned unsigned char unsigned short unsigned int unsigned long Floating point types float double long double bool: true (non-zero) and false (0) Used for types of expressions Conditionals: if and if-else statements Loops while loop do-while loop for statement test any place where true and false Type bool 2 inline as first token in function header (very short and no loops-control statements) + Speed up execution (avoid control transfer) + Use like macros, but safer since work exactly like functions (parameter passing) + Code is expanded at the point of the function call- Increase size of object code- Harder to debug Inline Functions #include <iostream.h>#include <iostream....
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Lecture19 - 1 Intermediate Programming CSE 1320 Lecture 19...

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