1 files changed, 109 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/g77/intrinsic-unix-bessel.f b/gcc/testsuite/gfortran.dg/g77/intrinsic-unix-bessel.f
new file mode 100644
index 00000000000..0b5789da679
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/g77/intrinsic-unix-bessel.f
@@ -0,0 +1,109 @@
+c { dg-do run }
+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