Built-In Array Limitations
Built-in arrays have several limitations:
• They cannot be compared using the relational and equality operators—you must use a loop to compare two built-in arrays element by element.
• They cannot be assigned to one another.
• They don’t know their own size—a function that processes a built-in array typically receives both the built-in array’s name and its size as arguments.
• They don’t provide automatic bounds checking—you must ensure that array-access expressions use subscripts that are within the built-in array’s bounds.
Objects of class templates
vector are safer, more robust and provide more capabilities than built-in arrays.