Conformant arrays are a feature of Modula-2, and perhaps other languages, in which the size of an array parameter is not known to the called function until run-time. Such parameters have two stabs: a ‘x’ for the array itself, and a ‘C’, which represents the size of the array. The value of the ‘x’ stab is the offset in the argument list where the address of the array is stored (it this right? it is a guess); the value of the ‘C’ stab is the offset in the argument list where the size of the array (in elements? in bytes?) is stored.