Sams Teach Yourself C++ in 24 Hours, Third Edition

Initializing Arrays

You can initialize a simple array of built-in types, such as integers and characters, when you first declare the array. After the array name, you put an equal sign (=) and a list of comma-separated values enclosed in braces. For example,

int IntegerArray[5] = { 10, 20, 30, 40, 50 };

declares IntegerArray to be an array of five integers. It assigns IntegerArray[0] the value 10, IntegerArray[1] the value 20, and so forth.

If you omit the size of the array, an array just big enough to hold the initialization is created. Therefore, if you write

int IntegerArray[] = { 10, 20, 30, 40, 50 };

you will create exactly the same array as you did in the previous example.

If you need to know the size of the array, you can use the