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4563 - Formatting and outputting your own classes in C++
When you output an object in C++, you pass it to an output stream such as std::cout or cout. If the thing you're outputting is a string, or an integer, float, some other primitive or a standard system object, that's all you need to do and the formatting is taken care of for you. But what if you're ....

4562 - Left shift operator on an output stream object - C++
When explaining "Hello World" in C++ (see here), delegates who are already familiar with programming in other languages pick up on the line   cout << "Welcome - and enjoy your C++ course" << endl; and ask for an explanation. Yes - it is a bit different, isn't it? The explanat ....

4561 - Hello World in C++ - a first program, with the process explained
"Hello World" programs - traditionally (a good tradition) te first example on a proogramming course in any language - just output the words "Hello World" or similar text and do little else. They show learners / students / delegates the mechanism of working with a language in te simplest possible ex ....

4560 - Variables, Pointers and References - C and C++
In C, you can address a memory location storing a value directly by its variable name, or you can access it via its address using a variable that contains that address - a pointer - declared using an * in the declaration, and you can then use:   * to mean contents of   & to m ....

4559 - When do I use the this keyword in C++?
Question: When do I use the this keyword in C++? Answer: When I expliciy need (or want) to refer to a member variable or object within the current object. Example:    class Transport{       public:           ....

4558 - Well House Consultants - Python courses / what's special.
"Well House Consultants - Python courses / what's special." - in answer to a request from a potential delegate. Some delegates come with prior programming experience / others without - and they require different starting points. So we offer "Learning to Program in Python" - 5 days for newcomers to ....

4557 - Function prototype - what they are and why you should use them - C and C++
In C and C++, your program if it's anything but trivial will be written in multiple source files. Each will be compiled into a snippet of runnable code - an "object" file - before all of these object files are linked / loaded together, and with standard libraries, using a program known by various ....

4556 - Strings in C - strncmp strncpy and friends
Strings in C are pointers to arrays of characters, null (\0) terminated. Which means that if you compare them with the == operator, you're going to be comparing addresses, and not whether the strings contain the same text. And even if you put a "*" in front of the variable you're comparing, all you ....

4555 - Preprocessor directives in C and C++ - what they mean
The C pre-processor runs on your C and C++ code at compile time prior to the main compile process. Source lines starting with the # character are processed to roduce a new source code file (internally - you don't normally see this) which is then the input to the compile process "proper". Preproces ....

4554 - Passing information into functions in C - by name, by value
If you pass a variable into a function in C, you copy the contents into the function so thst any changes made internally in the function are not reflected in the main code copy. However, if you pass in the address of the variable and work at the same address inside and outside the function, any cha ....

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