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C++ tutorial: loops and branches
Loops and branches are key features of all programs
So far we have examined simple C/C++ programs where the statements are executed,
one at a time and from top to bottom. In practice, it will usually be necessary for
the 'flow' of execution in a program to be more complex than this. 'Branches'
are points in the program where execution can go one way or another; 'loops' are
parts of a program that are executed repeatedly.
C/C++ has a reasonably large selection of loop and brach instructions; in fact, there
are more than we theoretically need. Often the choice of which type to use is a
matter of personal preference or convention. On a first reading, you might
prefer just to look at the sections for 'if', 'while' and 'for'.
These three constructs will give enough flexibility for simple applications.
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