LEN: Length of a Character String or of an Array

The result of LEN(x) is the number of bytes in string x, or the number of elements in the array x.

• • length_of_a_string
    = LEN(string)
  examples:
  • • CHARACTER a*100, b="ABCDE"
    • len_a = LEN(a) ! 100
    • len_b = LEN(b) ! 5
  • • ALIAS(a,1, c,3, d,72)
    • len_c = LEN(c) ! 3
    • len_d = LEN(d) ! 72
    • len_substring = LEN( a(x:y) ) ! y-x+1
• • number_of_array_elements
    = LEN(array)
  examples:
  • • DIMENSION u(12,4)
    • REAL :: n=3, v(n)
    • len_u = LEN(u) ! 48
    • len_v = LEN(v) ! 3
• ⇾ Trimmed length of a character string or of an array