Function evaluate_index_for_vector 

pub fn evaluate_index_for_vector(
    index: impl TryInto<i64> + Display,
    vector_length: i64,
) -> Result<i64, MathError>

Evaluates whether the provided index is referencing an entry in a vector. Negative indices are allowed and reference entries form the end of the vector.

Parameters:

• index: specifies the index in which the entry is located
• vector_length: specifies the length of the vector

Returns the index as an i64 if it references an entry and return an error otherwise.

Errors and Failures

• Returns a MathError of type MathError::OutOfBounds if the index is not within the bounds of the vector.