+++ /dev/null
-c intrinsic-unix-bessel.f
-c
-c Test Bessel function intrinsics.
-c These functions are only available if provided by system
-c
-c David Billinghurst <David.Billinghurst@riotinto.com>
-c
- real x, a
- double precision dx, da
- integer i
- integer*2 j
- integer*1 k
- integer*8 m
- logical fail
- common /flags/ fail
- fail = .false.
-
- x = 2.0
- dx = x
- i = 2
- j = i
- k = i
- m = i
-c BESJ0 - Bessel function of first kind of order zero
- a = 0.22389077
- da = a
- call c_r(BESJ0(x),a,'BESJ0(real)')
- call c_d(BESJ0(dx),da,'BESJ0(double)')
- call c_d(DBESJ0(dx),da,'DBESJ0(double)')
-
-c BESJ1 - Bessel function of first kind of order one
- a = 0.57672480
- da = a
- call c_r(BESJ1(x),a,'BESJ1(real)')
- call c_d(BESJ1(dx),da,'BESJ1(double)')
- call c_d(DBESJ1(dx),da,'DBESJ1(double)')
-
-c BESJN - Bessel function of first kind of order N
- a = 0.3528340
- da = a
- call c_r(BESJN(i,x),a,'BESJN(integer,real)')
- call c_r(BESJN(j,x),a,'BESJN(integer*2,real)')
- call c_r(BESJN(k,x),a,'BESJN(integer*1,real)')
- call c_d(BESJN(i,dx),da,'BESJN(integer,double)')
- call c_d(BESJN(j,dx),da,'BESJN(integer*2,double)')
- call c_d(BESJN(k,dx),da,'BESJN(integer*1,double)')
- call c_d(DBESJN(i,dx),da,'DBESJN(integer,double)')
- call c_d(DBESJN(j,dx),da,'DBESJN(integer*2,double)')
- call c_d(DBESJN(k,dx),da,'DBESJN(integer*1,double)')
-
-c BESY0 - Bessel function of second kind of order zero
- a = 0.51037567
- da = a
- call c_r(BESY0(x),a,'BESY0(real)')
- call c_d(BESY0(dx),da,'BESY0(double)')
- call c_d(DBESY0(dx),da,'DBESY0(double)')
-
-c BESY1 - Bessel function of second kind of order one
- a = 0.-0.1070324
- da = a
- call c_r(BESY1(x),a,'BESY1(real)')
- call c_d(BESY1(dx),da,'BESY1(double)')
- call c_d(DBESY1(dx),da,'DBESY1(double)')
-
-c BESYN - Bessel function of second kind of order N
- a = -0.6174081
- da = a
- call c_r(BESYN(i,x),a,'BESYN(integer,real)')
- call c_r(BESYN(j,x),a,'BESYN(integer*2,real)')
- call c_r(BESYN(k,x),a,'BESYN(integer*1,real)')
- call c_d(BESYN(i,dx),da,'BESYN(integer,double)')
- call c_d(BESYN(j,dx),da,'BESYN(integer*2,double)')
- call c_d(BESYN(k,dx),da,'BESYN(integer*1,double)')
- call c_d(DBESYN(i,dx),da,'DBESYN(integer,double)')
- call c_d(DBESYN(j,dx),da,'DBESYN(integer*2,double)')
- call c_d(DBESYN(k,dx),da,'DBESYN(integer*1,double)')
-
- if ( fail ) call abort()
- end
-
- subroutine failure(label)
-c Report failure and set flag
- character*(*) label
- logical fail
- common /flags/ fail
- write(6,'(a,a,a)') 'Test ',label,' FAILED'
- fail = .true.
- end
-
- subroutine c_r(a,b,label)
-c Check if REAL a equals b, and fail otherwise
- real a, b
- character*(*) label
- if ( abs(a-b) .gt. 1.0e-5 ) then
- call failure(label)
- write(6,*) 'Got ',a,' expected ', b
- end if
- end
-
- subroutine c_d(a,b,label)
-c Check if DOUBLE PRECISION a equals b, and fail otherwise
- double precision a, b
- character*(*) label
- if ( abs(a-b) .gt. 1.0d-5 ) then
- call failure(label)
- write(6,*) 'Got ',a,' expected ', b
- end if
- end