C++2007-09-04
Returning values from a function in C++
Functions return a value or return void. Void is a signal to the compiler that no value will be returned.
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C++2007-09-04
Passing parameters to a function by value in C++
The arguments passed in to the function are local to the function. Changes made to the arguments do not affect the values in the calling function. This is known as passing by value
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Demonstrating global and local variables in C++
Variables defined outside of any function have global scope and thus are available from any function in the program, including main().
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Use of Conditional (Ternary) Operator in C++
The conditional operator (?:) is C++'s only ternary operator; that is, it is the only operator to take three terms.
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Advanced if Statements in C++
It is worth noting that any statement can be used in an if or else clause, even another if or else statement. Thus, you might see complex if statements in the following form:
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The if Statement in C++
Normally, your program flows along line by line in the order in which it appears in your source code. The if statement enables you to test for a condition (such as whether two vari
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C++2007-09-04
Demonstration of Prefix and Postfix operators in C++
Both the increment operator (++) and the decrement operator(--) come in two varieties: prefix and postfix. The prefix variety is written before the variable name (++myAge); the pos
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How to use Enumerated constants in C++
Enumerated constants enable you to create new types and then to define variables of those types whose values are restricted to a set of possible values. For example, you can declar
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Using functions in C++
While main() is a function, it is an unusual one. Typical functions are called, or invoked, during the course of your program. A program is executed line by line in the order it ap
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Using Comments in a C++ Program
When you are writing a program, it is always clear and self-evident what you are trying to do. Funny thing, though--a month later, when you return to the program, it can be quite c
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Using cout in C++
To print a value to the screen, write the word cout, followed by the insertion operator (
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Getting Started with C++
The question inevitably arises: "Since C++ is a superset of C, should I learn C first?" Stroustrup and most other C++ programmers agree. Not only is it unnecessary to learn C first
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