progress with g2f_inq_prod()

src/g2c_interface.F90

@@ -62,9 +62,8 @@ end function g2c_inq_msg_time
      function g2c_inq_prod(g2id, msg_num, prod_num, pds_template_len, pds_template, gds_template_len, &
           gds_template, drs_template_len, drs_template) bind(c)
        use iso_c_binding
-       integer(c_int), value :: g2id
-       integer(c_int), value :: msg_num
-       integer(c_int), intent(out) :: prod_num, pds_template_len
+       integer(c_int), value :: g2id, msg_num, prod_num
+       integer(c_int), intent(out) :: pds_template_len
        integer(c_long_long), intent(out) :: pds_template(*)
        integer(c_int), intent(out) :: gds_template_len
        integer(c_long_long), intent(out) :: gds_template(*)

src/g2cf.F90

@@ -355,17 +355,23 @@ function g2cf_inq_prod(g2id, msg_num, prod_num, pds_template_len, pds_template,
 
     ! Copy output params to Fortran types.
     pds_template_len = cpds_template_len
-    do i = 1, pds_template_len
-       pds_template(i) = cpds_template(i)
-    end do
+    if (pds_template_len .gt. 0) then
+       do i = 1, pds_template_len
+          pds_template(i) = cpds_template(i)
+       end do
+    endif
     gds_template_len = cgds_template_len
-    do i = 1, gds_template_len
-       gds_template(i) = cgds_template(i)
-    end do
+    if (gds_template_len .gt. 0) then
+       do i = 1, gds_template_len
+          gds_template(i) = cgds_template(i)
+       end do
+    endif
     drs_template_len = cdrs_template_len
-    do i = 1, drs_template_len
-       drs_template(i) = cdrs_template(i)
-    end do
+    if (drs_template_len .gt. 0) then
+       do i = 1, drs_template_len
+          drs_template(i) = cdrs_template(i)
+       end do
+    endif
     status = cstatus
 
   end function g2cf_inq_prod

tests/test_g2cf.F90

@@ -14,7 +14,16 @@ program test_g2cf
   integer(kind = 1) :: master_version, local_version
   integer(kind = 1) :: sig_ref_time
   integer(kind = 2) :: year
-  integer(kind = 1) :: month, day, hour, minute, second  
+  integer(kind = 1) :: month, day, hour, minute, second
+  integer ::  pds_template_len, gds_template_len, drs_template_len
+  integer(kind = 8) ::  pds_template(G2_MAX_PDS_TEMPLATE_LEN), gds_template(G2_MAX_GDS_TEMPLATE_LEN), &
+       drs_template(G2_MAX_DRS_TEMPLATE_LEN)
+  integer(kind = 8) :: expected_pds_template(15) = (/ 2, 1, 2, 0, 11, 0, 0, 1, &
+       0, 1, 0, 1, 255, 0, 0 /)
+  integer(kind = 8) :: expected_gds_template(19) = (/ 6, 0, 0, 0, 0, 0, 0, 241, &
+       151, 0, 0, 50000000, 210000000, 48, 25000000, 250000000, 166667, 166667, 0  /)
+  integer(kind = 8) :: expected_drs_template(7) = (/ 1092616192, 0, 2, 11, 0, 0, 255 /)
+  integer :: i
   integer :: ierr
 
   print *, 'Testing g2cf API...'
@@ -40,10 +49,30 @@ program test_g2cf
   ! Check the time of the last message.
   ierr = g2cf_inq_msg_time(g2id, 19, sig_ref_time, year, &
        month, day, hour, minute, second)
+  if (ierr .ne. 0) stop 200
   !print *, sig_ref_time, year, month, day, hour, minute, second
   if (sig_ref_time .ne. 1 .or. year .ne. 2021 .or. month .ne. 11 .or. day .ne. 30 .or. &
        hour .ne. 0 .or. minute .ne. 0 .or. second .ne. 0) stop 101
 
+  ! Learn about the first product in the last message.
+  ierr = g2cf_inq_prod(g2id, 1, 1, pds_template_len, pds_template, gds_template_len, &
+       gds_template, drs_template_len, drs_template)
+  if (ierr .ne. 0) stop 300
+  !print *, pds_template_len, gds_template_len, drs_template_len
+  if (pds_template_len .ne. 15 .or. gds_template_len .ne. 19 .or. drs_template_len .ne.7) stop 301
+  !print *, pds_template
+  do i = 1, pds_template_len
+     if (pds_template(i) .ne. expected_pds_template(i)) stop 302
+  end do
+  !print *, gds_template
+  do i = 1, gds_template_len
+     if (gds_template(i) .ne. expected_gds_template(i)) stop 302
+  end do
+  !print *, drs_template
+  do i = 1, drs_template_len
+     if (drs_template(i) .ne. expected_drs_template(i)) stop 302
+  end do
+
   ! Close the file.
   ierr = g2cf_close(g2id)
   if (ierr .ne. 0) stop 20