Arrays

Arrays are stored in row-major order. This means that an array is stored a row at a time, rather than a column at a time (column-major order).

Example

VAR
   a : ARRAY [1..2,1..3] OF char;

Row-major order:

Figure 5-4 Array Example 1

Column-major order:

Figure 5-5 Array Example 2

The HP Pascal packing algorithm uses this formula to allocate an array:

number_of_elements * space_for_one_element

The space_for_one_element depends upon the array element type and whether the array is unpacked, packed, or crunched. The same factors determine element alignment. See the tables indicated below:

Table 5-3 Title not available (Arrays )

If the array is:	See:	In the section:
Unpacked	Table 5-1 “Allocation and Alignment of Unpacked Variables (HP Pascal Packing Algorithm) ”	“Unpacked Variables ”
Packed	Table 5-5 “Allocation and Alignment of Packed Array Elements (HP Pascal Packing Algorithm) ”	“Packed Arrays ”
Crunched	Table 5-7 “Allocation of Crunched Array Elements and Record Fields (HP Pascal Packing Algorithm) ”	“Crunched Arrays and Records ”

Arrays

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