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I would like to share with you what it means to cross the boundary in c language. I believe most people don't know much about it, so share this article for your reference. I hope you will learn a lot after reading this article. Let's learn about it.

For example, if there are ten elements in an array definition, then a [0]-a [9] corresponds to the corresponding elements respectively. If a [10] is used in the program, then it is beyond the scope of the original o array definition, which is the array subscript out of bounds.

What does array out of bounds mean?

C and C++ language array subscripts out of bounds, the compiler will not check for errors, but in fact the consequences may be very serious, such as program crashes, so in daily programming, programmers should develop good programming habits to avoid such errors.

Array out of bounds in VB

12. Referenced array elements that do not exist

The subscript may have a larger or smaller range than the subscript, or the array on this side of the application may not have a specified range. Check the declaration of the array to confirm its upper and lower bounds. If you are using a reassigned array, you should use the UBound and LBound functions to determine array access. If the index is specified as a variable, you should check the spelling of the variable name.

The number of elements was not specified when the array was declared. For example, the following code causes this error: DimMyArray () AsInteger

MyArray (8) = 234' causes error 9. VisualBasic does not automatically set arrays that do not have a specified range to 0-10. Instead, you must use Dim or ReDim to specify the number of elements in the array.

2. A collection member that does not exist is referenced.

Try using the ForEach...Next structure instead of the specified element subscript. Using the subscript in sketch form, the wrong element is specified as a result.

Array subscript out of bounds is one of the most common mistakes made by beginners of a program.

Take a simple one-dimensional array as an example:

Inta [10]; this is an integer array a with 10 elements: a [0]-a [9], because the correct subscript should start at 0 and end at 9, which is different from 1-10 in lifestyle, so an error of a [10] is generated, that is, the array subscript is out of bounds.

C and C++ language array subscripts out of bounds, the compiler will not check for errors, but in fact the consequences may be very serious, such as program crashes, so in daily programming, programmers should develop good programming habits to avoid such errors.

If you prompt "array subscript out of bounds" when editing a web page, in addition to checking the above problems, check whether the variable names in the following file are consistent, which is often caused by inconsistent variable names.

The angle mark used is greater than or equal to the length of the array or is negative!

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