2 c intrinsic-unix-bessel.f
4 c Test Bessel function intrinsics.
5 c These functions are only available if provided by system
7 c David Billinghurst <David.Billinghurst@riotinto.com>
10 double precision dx
, da
25 c BESJ0 - Bessel function of first kind of order zero
28 call c_r
(BESJ0
(x
),a
,'BESJ0(real)')
29 call c_d
(BESJ0
(dx
),da
,'BESJ0(double)')
30 call c_d
(DBESJ0
(dx
),da
,'DBESJ0(double)')
32 c BESJ1 - Bessel function of first kind of order one
35 call c_r
(BESJ1
(x
),a
,'BESJ1(real)')
36 call c_d
(BESJ1
(dx
),da
,'BESJ1(double)')
37 call c_d
(DBESJ1
(dx
),da
,'DBESJ1(double)')
39 c BESJN - Bessel function of first kind of order N
42 call c_r
(BESJN
(i
,x
),a
,'BESJN(integer,real)')
43 call c_r
(BESJN
(j
,x
),a
,'BESJN(integer(2),real)')
44 call c_r
(BESJN
(k
,x
),a
,'BESJN(integer(1),real)')
45 call c_d
(BESJN
(i
,dx
),da
,'BESJN(integer,double)')
46 call c_d
(BESJN
(j
,dx
),da
,'BESJN(integer(2),double)')
47 call c_d
(BESJN
(k
,dx
),da
,'BESJN(integer(1),double)')
48 call c_d
(DBESJN
(i
,dx
),da
,'DBESJN(integer,double)')
49 call c_d
(DBESJN
(j
,dx
),da
,'DBESJN(integer(2),double)')
50 call c_d
(DBESJN
(k
,dx
),da
,'DBESJN(integer(1),double)')
52 c BESY0 - Bessel function of second kind of order zero
55 call c_r
(BESY0
(x
),a
,'BESY0(real)')
56 call c_d
(BESY0
(dx
),da
,'BESY0(double)')
57 call c_d
(DBESY0
(dx
),da
,'DBESY0(double)')
59 c BESY1 - Bessel function of second kind of order one
62 call c_r
(BESY1
(x
),a
,'BESY1(real)')
63 call c_d
(BESY1
(dx
),da
,'BESY1(double)')
64 call c_d
(DBESY1
(dx
),da
,'DBESY1(double)')
66 c BESYN - Bessel function of second kind of order N
69 call c_r
(BESYN
(i
,x
),a
,'BESYN(integer,real)')
70 call c_r
(BESYN
(j
,x
),a
,'BESYN(integer(2),real)')
71 call c_r
(BESYN
(k
,x
),a
,'BESYN(integer(1),real)')
72 call c_d
(BESYN
(i
,dx
),da
,'BESYN(integer,double)')
73 call c_d
(BESYN
(j
,dx
),da
,'BESYN(integer(2),double)')
74 call c_d
(BESYN
(k
,dx
),da
,'BESYN(integer(1),double)')
75 call c_d
(DBESYN
(i
,dx
),da
,'DBESYN(integer,double)')
76 call c_d
(DBESYN
(j
,dx
),da
,'DBESYN(integer(2),double)')
77 call c_d
(DBESYN
(k
,dx
),da
,'DBESYN(integer(1),double)')
79 if ( fail
) call abort
()
82 subroutine failure
(label
)
83 c Report failure and set flag
87 write(6,'(a,a,a)') 'Test ',label
,' FAILED'
91 subroutine c_r
(a
,b
,label
)
92 c Check if REAL a equals b, and fail otherwise
95 if ( abs
(a
-b
) .gt
. 1.0e-5 ) then
97 write(6,*) 'Got ',a
,' expected ', b
101 subroutine c_d
(a
,b
,label
)
102 c Check if DOUBLE PRECISION a equals b, and fail otherwise
103 double precision a
, b
105 if ( abs
(a
-b
) .gt
. 1.0d
-5 ) then
107 write(6,*) 'Got ',a
,' expected ', b