AINT

 AINT (real-number[,kind])

 Class:  Elemental function - Generic

 Returns the largest integer whose absolute value does not exceed
 the absolute value of the argument and has the same sign as the
 argument.

 +------+---------+----------+------------+-------------+        
 | Args | Generic | Specific |  Argument  | Result Type |
 +------+---------+----------+------------+-------------+
 |  1   |  AINT   | AINT     | REAL*4     | REAL*4      |
 |      |         | DINT     | REAL*8     | REAL*8      |
 |      |         | QINT     | REAL*16    | REAL*16     |
 +------+---------+----------+------------+-------------+