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Index bound
Index Bound An index bound is a limitation placed on the values of an array or list. It specifies the maximum or minimum index value that an index can h...
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Index Bound An index bound is a limitation placed on the values of an array or list. It specifies the maximum or minimum index value that an index can h...
Index Bound
An index bound is a limitation placed on the values of an array or list. It specifies the maximum or minimum index value that an index can hold.
Example:
Consider the following array of numbers:
[1, 3, 5, 7, 9]
The array has a maximum index of 9. This means that the valid indices for this array are from 0 to 8.
Key Points about Index Bounds:
An index bound is typically declared along with the array declaration.
It is usually expressed using the syntax array_name[index_limit].
For example, in the given array, the index bound is array_name[9].
The index limit can be greater than or equal to the length of the array.
An index bound can also be negative.
If the index bound is exceeded, it will result in an error or unexpected behavior.
Consequences of Index Bounds:
Index bounds affect the valid range of values that can be accessed or modified in the array.
They prevent accessing or modifying elements beyond the array's limits.
This can ensure data integrity and prevent unexpected errors.
Examples:
arr[i] accesses the element at the index i in the array.
arr[i:3] accesses elements from the index i to 2 more than the index.
arr[-1] accesses the element at the end of the array.
If i is outside the valid range (0 to 8), accessing arr[i] will result in an error