Changeset 8528 for trunk/NEMOGCM/NEMO/SAS_SRC/nemogcm.F90

Timestamp:

2017-09-15T16:43:25+02:00 (7 years ago)

Author:

timgraham

Message:

First set of fixes for #1860 (getting rid of GOTO statements)

File:

• trunk/NEMOGCM/NEMO/SAS_SRC/nemogcm.F90 (modified) (1 diff)

trunk/NEMOGCM/NEMO/SAS_SRC/nemogcm.F90

@@ -596 +596 @@
       !
       ! Find the factors of n.
-      IF( kn == 1 )   GOTO 20
-
-      ! nu holds the unfactorised part of the number.
-      ! knfax holds the number of factors found.
-      ! l points to the allowed factor list.
-      ! ifac holds the current factor.
-      !
-      inu   = kn
-      knfax = 0
-      !
-      DO jl = ntest, 1, -1
-         !
-         ifac = ilfax(jl)
-         IF( ifac > inu )   CYCLE
-
-         ! Test whether the factor will divide.
-
-         IF( MOD(inu,ifac) == 0 ) THEN
+      IF( kn .NE. 1 ) THEN
+
+         ! nu holds the unfactorised part of the number.
+         ! knfax holds the number of factors found.
+         ! l points to the allowed factor list.
+         ! ifac holds the current factor.
+         !
+         inu   = kn
+         knfax = 0
+         !
+         DO jl = ntest, 1, -1
             !
-            knfax = knfax + 1            ! Add the factor to the list
-            IF( knfax > kmaxfax ) THEN
-               kerr = 6
-               write (*,*) 'FACTOR: insufficient space in factor array ', knfax
-               return
+            ifac = ilfax(jl)
+            IF( ifac > inu )   CYCLE
+   
+            ! Test whether the factor will divide.
+   
+            IF( MOD(inu,ifac) == 0 ) THEN
+               !
+               knfax = knfax + 1            ! Add the factor to the list
+               IF( knfax > kmaxfax ) THEN
+                  kerr = 6
+                  write (*,*) 'FACTOR: insufficient space in factor array ', knfax
+                  return
+               ENDIF
+               kfax(knfax) = ifac
+               ! Store the other factor that goes with this one
+               knfax = knfax + 1
+               kfax(knfax) = inu / ifac
+               !WRITE (*,*) 'ARPDBG, factors ',knfax-1,' & ',knfax,' are ', kfax(knfax-1),' and ',kfax(knfax)
             ENDIF
-            kfax(knfax) = ifac
-            ! Store the other factor that goes with this one
-            knfax = knfax + 1
-            kfax(knfax) = inu / ifac
-            !WRITE (*,*) 'ARPDBG, factors ',knfax-1,' & ',knfax,' are ', kfax(knfax-1),' and ',kfax(knfax)
-         ENDIF
-         !
-      END DO
-      !
-   20 CONTINUE      ! Label 20 is the exit point from the factor search loop.
+            !
+         END DO
+         !
+      ENDIF
       !
    END SUBROUTINE factorise