what you do to avoid out of bounds array access in c++?

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Hello Every one,

I have created an array but when i am getting an out of bound array access error please can you help me to avoid it.

Much awaited for reply.

Thank you.

Posted 1-Feb-16 9:02am

Mustafa_ub2016

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Sergey Alexandrovich Kryukov 1-Feb-16 15:49pm

Don't access element with the indices which are beyond the range 0 to length - 1. :-)
—SA

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Sascha Lefèvre · Accepted Answer · 2016-02-01T09:10:00

Solution 1

Since you didn't show any code the answer can only be a general one: Stay inside the bounds of the array. Apart from accessing at some wildly out of bounds position, one particular case is more common: If you have an array with a size of 10 then 10 isn't a valid index. Because arrays in C++ are 0-based. So in this case, valid indices are 0 to 9.

Posted 1-Feb-16 9:10am

Sascha Lefèvre

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Mustafa_ub2016 1-Feb-16 15:56pm

Thank you for your reply. Appreciate your time.

Sascha Lefèvre 1-Feb-16 16:04pm

You're welcome!

CPallini · Accepted Answer · 2016-02-01T09:34:00

Solution 2

You must not go out of bounds, the C/C++ developer has to be precise. That said, you could use std::vector instead of a plain array: it provides the std::vector::at - cppreference.com[^] method that throws an exception if you try to make an out-of-bounds access.

Posted 1-Feb-16 9:34am

CPallini

Comments

Sergey Alexandrovich Kryukov 1-Feb-16 15:50pm

5ed.
—SA

CPallini 1-Feb-16 16:08pm

Thank you.

Mustafa_ub2016 1-Feb-16 15:56pm

Thank you for your reply. Appreciate your time.

CPallini 1-Feb-16 16:09pm

You are welcome