In the storage class of a fixed or named memory, C has explicit mechanisms to allocate that memory. These correlate to the following four C keywords:
- auto
- static
- register
- extern
Note that the auto keyword represents the automatic storage class, and the static keyword specifies the static storage class. We are currently interested in only the first two of these mechanisms. These keywords precede a variable specification, as follows:
<storage class> [const] <data type> <name> [= <initial value>];
In this specification, the following applies:
- <storage class>is one of the preceding four keywords.
- [const]is an optional keyword to indicate whether the named memory can be changed...
