In PowerBuilder, referring to array elements outside the declared size causes an error at runtime; for example:
int test[10]
test[11]=50 // This causes an execution error.
test[0]=50 // This causes an execution error.
int trial[5,10]
trial [6,2]=75 // This causes an execution error.
trial [4,11]=75 // This causes an execution error.
Assigning a value to an element of a variable-size array that is outside its current values increases the array’s size. However, accessing a variable-size array above its largest assigned value or below its lower bound causes an error at runtime:
integer li_stock[ ]
li_stock[50]=200
// Establish array size 50 elements.
IF li_stock[51]=0 then Beep(1)
// This causes an execution error.
IF li_stock[0]=0 then Beep(1)
// This causes an execution error.
