Take a look at this seemingly innocent sample program: #include <iostream> int main() { std::cout << “The sum of 3 and 4 is: ” << add(3, 4) << ‘\n’; return 0; } int add(int x, int y) { return x + y; } You would expect this program to produce …
A few days ago, I added a “recent news” box to the front page of the site, which shows the most recent items posted in the News category. It’s the easiest way to find the most up to date news about the site or the C++ Tutorial. Today when I …
There was an article linked from Digg posted up a couple days ago entitled “6 ways to write better code”. It’s pretty good advice (for the most part), so I thought I’d link it here. http://www.ibm.com/developerworks/linux/library/l-clear-code/index.html?ca=drs- Here are the recommendations of the author, along with my own comments: 1) Comment …
is a term that refers to characters that are used for formatting purposes. In C++, this refers primarily to spaces, tabs, and newlines. Whitespace in C++ is generally used for 3 things: separating certain language elements, inside text, and for formatting code. Some language elements must be whitespace-separated The syntax …
One question that I’ve been struggling with over the last week is how to make the WordPress header image hyperlink back to the site itself. Many WordPress themes use the CSS background-image properly to display the header image. Unfortunately, there’s no direct way to modify the CSS style sheet to …
Note: This blog article has been superseded by the article at http://www.learncpp.com/?p=30. I added a “recent news” box to the front page of the site, which shows the most recent items posted in the News category. It’s the easiest way to find the most up to date news about the …
In the last chapter, we defined a function as a collection of statements that execute sequentially. While that is certainly true, that definition doesn’t provide much insight into why functions are useful. Let’s update our definition: A is a reusable sequence of statements designed to do a particular job. You …
Data and values In lesson , you learned that the majority of instructions in a program are statements, and that functions are groups of statements that execute sequentially. The statements inside the function perform actions that (hopefully) generate whatever result the program was designed to produce. But how do programs …
A is a programmer-readable note that is inserted directly into the source code of the program. Comments are ignored by the compiler and are for the programmer’s use only. In C++ there are two different styles of comments, both of which serve the same purpose: to help programmers document the …
This website utilizes the wonderful Tiga 1.0.2 theme, which works great under WordPress 2.1.3. However, when I upgraded the site to WordPress 2.2 (which now has built-in widget functionality), it quickly became clear that the widget functionality was not working properly under the Tiga 1.0.2 theme. Although you can set …
