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3. Initialization
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 In the absence of explicit initialization, external and static variables are guaranteed to be initialized to zero; automatic and register variables have undefined (i.e., garbage) initial values. |
– Internal variables are defined inside of any function.
– Declarations of variables within blocks are implicitly of storage class automatic. |
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| Example |
int x = 1;
char squota = ‘\’;
long day = 1000L * 60L * 60L * 24L; /* milliseconds/day */
int binsearch(int x, int v[], int n)
{
int low = 0;
int high = n – 1;
int mid;
...
}
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