Index out of range

What does 3103 mean?

A fatal synchronous programming error that occurs when the program attempts to access an element of an array or data structure using an index that is outside its defined boundaries. This is a critical programming flaw that bypasses standard error recovery, leading to program termination.

• A Mint program attempts to access an array element using an index that is less than zero or greater than (array_size - 1).
• Loop counters or iteration variables are not correctly bounded, leading to out-of-bounds array access.
• Dynamic sizing of arrays or data structures is miscalculated, resulting in an insufficient allocated size for subsequent access.
• Pointer arithmetic errors in advanced Mint programming leading to memory access outside allocated blocks.

Click steps to track your progress.

1. 1

   Identify the specific array access operation in the Mint program that is causing the error by reviewing the program execution logs.

2. 2

   Verify the declared size of the array or data structure and ensure all access indices are within the valid range (e.g., for an array myArray[10], valid indices are 0-9).

3. 3

   Add explicit boundary checks before array access operations (e.g., IF index >= 0 AND index < ARRAY_SIZE THEN ... ENDIF).

4. 4

   Carefully review loop conditions to ensure the loop variable never exceeds the array's upper bound or goes below its lower bound.

5. 5

   If dynamic indexing is used, trace the calculation of the index variable to confirm its correctness at all times.