01:       REAL FUNCTION SCASUM(N,CX,INCX)
02: *     .. Scalar Arguments ..
03:       INTEGER INCX,N
04: *     ..
05: *     .. Array Arguments ..
06:       COMPLEX CX(*)
07: *     ..
08: *
09: *  Purpose
10: *  =======
11: *
12: *     takes the sum of the absolute values of a complex vector and
13: *     returns a single precision result.
14: *     jack dongarra, linpack, 3/11/78.
15: *     modified 3/93 to return if incx .le. 0.
16: *     modified 12/3/93, array(1) declarations changed to array(*)
17: *
18: *
19: *     .. Local Scalars ..
20:       REAL STEMP
21:       INTEGER I,NINCX
22: *     ..
23: *     .. Intrinsic Functions ..
24:       INTRINSIC ABS,AIMAG,REAL
25: *     ..
26:       SCASUM = 0.0e0
27:       STEMP = 0.0e0
28:       IF (N.LE.0 .OR. INCX.LE.0) RETURN
29:       IF (INCX.EQ.1) GO TO 20
30: *
31: *        code for increment not equal to 1
32: *
33:       NINCX = N*INCX
34:       DO 10 I = 1,NINCX,INCX
35:           STEMP = STEMP + ABS(REAL(CX(I))) + ABS(AIMAG(CX(I)))
36:    10 CONTINUE
37:       SCASUM = STEMP
38:       RETURN
39: *
40: *        code for increment equal to 1
41: *
42:    20 DO 30 I = 1,N
43:           STEMP = STEMP + ABS(REAL(CX(I))) + ABS(AIMAG(CX(I)))
44:    30 CONTINUE
45:       SCASUM = STEMP
46:       RETURN
47:       END
48: