presegmt.F

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!||====================================================================
!||    presegmt       ../starter/source/interfaces/interf1/presegmt.F
!||--- called by ------------------------------------------------------
!||    lecint         ../starter/source/interfaces/interf1/lecint.F
!||    prescrint      ../starter/source/interfaces/interf1/prescrint.F
!||--- calls      -----------------------------------------------------
!||--- uses       -----------------------------------------------------
!||====================================================================
      SUBROUTINE presegmt(IRECT,NODES,NRT,NNO,NST)
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
      USE my_alloc_mod
#include      "implicit_f.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER, INTENT(IN)  :: NRT, NNO, IRECT(4,*), NODES(*)
      INTEGER, INTENT(OUT) :: NST 
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
#include      "com04_c.inc"
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I, J, K
      INTEGER, DIMENSION(:), ALLOCATABLE :: NTAG
      INTEGER, DIMENSION(:), ALLOCATABLE :: NSEG
C=======================================================================
      CALL my_alloc(nseg,nno+1)
      CALL my_alloc(ntag,numnod)
 
      nst  = 0
      nseg(1) = 1
      nseg(2:nno+1) = 0
C
      DO i=1,nno
        ntag(nodes(i))=i
      ENDDO
C
      DO i=1,nrt
        DO j=1,4
          IF (irect(j,i) /= 0) THEN
            k = ntag(irect(j,i))+1
            nseg(k)=nseg(k)+1
          ENDIF
        ENDDO
      ENDDO
C
      DO i=1,nno
        nst = nst + nseg(i+1)
      ENDDO
C
      DEALLOCATE(ntag)
      DEALLOCATE(nseg)
      RETURN
      END