3.4: Declaring Array Types
- Page ID
- 49273
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The declaration of array type depends on how many features the array in a particular language has.
The easiest declaration is when the language has a fixed lower bound and fixed index type. If you need an array to store the monthly income you could declare in C
typedef double Income[12];
This gives you an array with in the range of 0 to 11. For a full description of arrays in C see C Programming/Arrays.
If you use a language where you can choose both the lower bound as well as the index type, the declaration is—of course—more complex. Here are two examples in Ada:
type Month is range 1 .. 12;
type Income is array(Month) of Float;
or shorter:
type Income is array(1 .. 12) of Float;
For a full description of arrays in Ada see Ada Programming/Types/array.