You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.3 KiB
48 lines
1.3 KiB
C Copyright(C) 1999-2020 National Technology & Engineering Solutions
|
|
C of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
|
|
C NTESS, the U.S. Government retains certain rights in this software.
|
|
C
|
|
C See packages/seacas/LICENSE for details
|
|
|
|
C------------------------------------------------------------- ************
|
|
C ISMIN
|
|
C ************
|
|
INTEGER FUNCTION ISMIN(N,SX,INCX)
|
|
|
|
C FINDS THE INDEX OF ELEMENT WITH MIN. VALUE.
|
|
C JACK DONGARRA, LINPACK, 3/11/78.
|
|
|
|
INTEGER I,INCX,IX,N
|
|
REAL SX(*),SMIN
|
|
|
|
ISMIN = 0
|
|
IF (N .LT. 0) STOP
|
|
IF (N .EQ. 0) RETURN
|
|
ISMIN = 1
|
|
IF (N .EQ. 1) RETURN
|
|
IF (INCX .EQ. 1) GO TO 20
|
|
|
|
C CODE FOR INCREMENT NOT EQUAL TO 1
|
|
|
|
IX = 1
|
|
IF (INCX .LE. 0) IX = (-N+1)*INCX + 1
|
|
SMIN = SX(IX)
|
|
IX = IX + INCX
|
|
DO 10 I = 2,N,1
|
|
IF (SX(IX) .GE. SMIN) GO TO 5
|
|
ISMIN = I
|
|
SMIN = SX(IX)
|
|
5 IX = IX + INCX
|
|
10 CONTINUE
|
|
RETURN
|
|
|
|
C CODE FOR INCREMENT EQUAL TO 1
|
|
|
|
20 SMIN = SX(1)
|
|
DO 30 I = 2,N,1
|
|
IF (SX(I) .GE. SMIN) GO TO 30
|
|
ISMIN = I
|
|
SMIN = SX(I)
|
|
30 CONTINUE
|
|
RETURN
|
|
END
|
|
|