gdb/testsuite/gdb.ada/dyn_stride.exp

   1 # Copyright 2015-2023 Free Software Foundation, Inc.
   2 #
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 load_lib "ada.exp"
  17
  18 if { [skip_ada_tests] } { return -1 }
  19
  20 standard_ada_testfile foo
  21
  22 if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug ]] != "" } {
  23   return -1
  24 }
  25
  26 clean_restart ${testfile}
  27
  28 set bp_location [gdb_get_line_number "STOP" ${testdir}/foo.adb]
  29 if {![runto "foo.adb:$bp_location"]} {
  30   return -1
  31 }
  32
  33 gdb_test "print A1(1)" \
  34          "\\(i => 0, s => \"\"\\)"
  35
  36 gdb_test "print A1(2)" \
  37          "\\(i => 1, s => \"A\"\\)"
  38
  39 gdb_test "print A1(3)" \
  40          "\\(i => 2, s => \"AB\"\\)"
  41
  42 gdb_test "print A1(1..3)" \
  43          "\\(\\(i => 0, s => \"\"\\), \\(i => 1, s => \"A\"\\), \\(i => 2, s => \"AB\"\\)\\)"
  44
  45 # Test the use of the "repeat" operator (@).
  46 #
  47 # Note that, in this case, the repeat operator makes little sense
  48 # and is NOT equivalent to requesting an array slice. In the case
  49 # of "print a1(1)@3", the size of each element in the array is
  50 # variable from element to element.  So, when asked to repeat
  51 # one element of the array a number of times, you're not guaranteed
  52 # to get the same answer as in a slice; while the slice will
  53 # take into account the array stride, the repeat operator uses
  54 # the size of the object being repeated as its stride, which
  55 # is often not the same. So, in the test below, the output for
  56 # the second and third element is not entirely predictable, because
  57 # it reads part of their contents from a memory region which has
  58 # an undefined value (the "holes" between the each actual element
  59 # of the array).
  60
  61 gdb_test "print a1(1)@3" \
  62          " = \\(\\(i => 0, s => \"\"\\), \\(i => -?$decimal, s => .*\\), \\(i => -?$decimal, s => .*\\)\\)"