The overwhelming majority of data you'll work with will be in the form of variables (as opposed to constants, which you'll also learn about at the end of this chapter). To use a variable, you must first declare it—in other words, you state that a variable with a specific name will be of a certain type. The declaration statement looks like this:
int age; float cost; char answer;
The different types are listed in Table 2.1, along with what version of C they are allowed in.
|C Data Types|
|long long int||All|