Intel® Fortran Compiler 18.0 Developer Guide and Reference
Portability Function: Generates a random number between 0.0 and RAND_MAX. RANF can be used as a portability routine or as an intrinsic procedure. It is an intrinsic procedure unless you specify USE IFPORT.
USE IFPORT
result = RANF ( )
The result type is REAL(4). The result value is a single-precision pseudo-random number between 0.0 and (2**31) - 1.
The initial seed is set by the following:
CALL SRAND(ISEED)
where ISEED is type INTEGER(4).