LBOUND - mkilgore/QB64pe GitHub Wiki

The LBOUND function returns the smallest valid index (lower bound) of an array dimension.

result% = LBOUND(arrayName[,])

• arrayName specifies the name of the array.
• dimension% specifies the dimension number, starting with 1 for the first dimension.
  • If omitted, dimension% is assumed to be 1.
  • If dimension% is less than 1 or is greater than the number of dimensions, a subscript out of range error occurs.
• LBOUND and UBOUND are used to determine the range of valid indexes of an array.

PRINT LBOUND(myArray)
PRINT LBOUND(myOtherArray, 2)

 0
 3

• Arrays, UBOUND
• DIM, COMMON, STATIC, SHARED