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Patches pour OS/2

    1:       DOUBLE PRECISION FUNCTION DASUM(N,DX,INCX)
    2: *     .. Scalar Arguments ..
    3:       INTEGER INCX,N
    4: *     ..
    5: *     .. Array Arguments ..
    6:       DOUBLE PRECISION DX(*)
    7: *     ..
    8: *
    9: *  Purpose
   10: *  =======
   11: *
   12: *     DASUM takes the sum of the absolute values.
   13: *
   14: *  Further Details
   15: *  ===============
   16: *
   17: *     jack dongarra, linpack, 3/11/78.
   18: *     modified 3/93 to return if incx .le. 0.
   19: *     modified 12/3/93, array(1) declarations changed to array(*)
   20: *
   21: *  =====================================================================
   22: *
   23: *     .. Local Scalars ..
   24:       DOUBLE PRECISION DTEMP
   25:       INTEGER I,M,MP1,NINCX
   26: *     ..
   27: *     .. Intrinsic Functions ..
   28:       INTRINSIC DABS,MOD
   29: *     ..
   30:       DASUM = 0.0d0
   31:       DTEMP = 0.0d0
   32:       IF (N.LE.0 .OR. INCX.LE.0) RETURN
   33:       IF (INCX.EQ.1) GO TO 20
   34: *
   35: *        code for increment not equal to 1
   36: *
   37:       NINCX = N*INCX
   38:       DO 10 I = 1,NINCX,INCX
   39:           DTEMP = DTEMP + DABS(DX(I))
   40:    10 CONTINUE
   41:       DASUM = DTEMP
   42:       RETURN
   43: *
   44: *        code for increment equal to 1
   45: *
   46: *
   47: *        clean-up loop
   48: *
   49:    20 M = MOD(N,6)
   50:       IF (M.EQ.0) GO TO 40
   51:       DO 30 I = 1,M
   52:           DTEMP = DTEMP + DABS(DX(I))
   53:    30 CONTINUE
   54:       IF (N.LT.6) GO TO 60
   55:    40 MP1 = M + 1
   56:       DO 50 I = MP1,N,6
   57:           DTEMP = DTEMP + DABS(DX(I)) + DABS(DX(I+1)) + DABS(DX(I+2)) +
   58:      +            DABS(DX(I+3)) + DABS(DX(I+4)) + DABS(DX(I+5))
   59:    50 CONTINUE
   60:    60 DASUM = DTEMP
   61:       RETURN
   62:       END