By Bartosz Milewski
(Pearson schooling) sleek consultant to utilizing C++ langugage, together with find out how to use it on home windows programming. exhibits the right way to write courses for programmers, no longer desktops. The CD-ROM gains the entire resource code and tasks from the textual content. additionally encompasses a better half website. method necessities now not indexed. Softcover.
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Extra resources for C++ in Action, w. CD-ROM: Industrial-strength Programming Techniques
In this sense a pointer acts just like a reference, it is an alias of some other object. There is, however, one big difference between a pointer and a reference. A pointer is not permanently attached to an object-- it can be moved. The programmer can change the pointer to point to another object. This is a very powerful feature and, at the same time, a very dangerous one. The majority of bugs involve, in one way or another, the use of pointers. In C++ (and C) we have the following types of pointers: • Uninitialized pointers, • Pointers to deallocated memory, • Pointers beyond the end of an array, • Pointers that think they point to something else, • Cross your fingers, knock on wood kind of pointers.
However, as long as we don't define NDEBUG, the assertion checks its argument for logical truth, that is, for a nonzero value. In other words, it asserts the truth of its argument. We define 35 NDEBUG only after the final program is thoroughly tested, and in one big swoop we get rid of all the assertions, thus improving the program's speed2. What happens when the argument of the assertion is not true (or is equal to zero)? In that unfortunate case the assertion will print a message specifying the name of the source file, the line number and the condition that failed.
Where the number of minus signs is passed as an int argument to the constructor. Similarly class VerBar should print a vertical bar of height n, like this: | | | | 5. Define class Frame that contains (embedded) the upper horizontal bar, the vertical bar and the lower horizontal bar. Its constructor should take two arguments, the horizontal and the vertical extent of the frame Frame (int hor, int ver) 6. The Frame object can be defined and initialized in the program using the following syntax: Frame myFrame (10, 2); 7.