LLT

 LLT (string-a, string-b)

 Class:  Elemental function - Generic

 Returns a value of true if the first character string is less than
 the second character string, based on the ASCII collating sequence
 - even if the processor's default collating sequence is different.
 In VSI Fortran, LLT is equivalent to the < operator.

 The ASCII collating sequence determines the relationship between
 the arguments.

 The arguments must be character expressions.  The result is a
 LOGICAL*4 value.

 This function cannot be passed as an actual argument.