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dyn_stride.exp revision 1.1 
      1 # Copyright 2015-2019 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 standard_ada_testfile foo
     19 
     20 if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug ]] != "" } {
     21   return -1
     22 }
     23 
     24 clean_restart ${testfile}
     25 
     26 set bp_location [gdb_get_line_number "STOP" ${testdir}/foo.adb]
     27 if ![runto "foo.adb:$bp_location" ] then {
     28   return -1
     29 }
     30 
     31 gdb_test "print A1(1)" \
     32          "\\(i => 0, s => \"\"\\)"
     33 
     34 gdb_test "print A1(2)" \
     35          "\\(i => 1, s => \"A\"\\)"
     36 
     37 gdb_test "print A1(3)" \
     38          "\\(i => 2, s => \"AB\"\\)"
     39 
     40 gdb_test "print A1(1..3)" \
     41          "\\(\\(i => 0, s => \"\"\\), \\(i => 1, s => \"A\"\\), \\(i => 2, s => \"AB\"\\)\\)"
     42 
     43 # Test the use of the "repeat" operator (@).
     44 #
     45 # Note that, in this case, the repeat operator makes little sense
     46 # and is NOT equivalent to requesting an array slice. In the case
     47 # of "print a1(1)@3", the size of each element in the array is
     48 # variable from element to element.  So, when asked to repeat
     49 # one element of the array a number of times, you're not guaranteed
     50 # to get the same answer as in a slice; while the slice will
     51 # take into account the array stride, the repeat operator uses
     52 # the size of the object being repeated as its stride, which
     53 # is often not the same. So, in the test below, the output for
     54 # the second and third element is not entirely predictable, because
     55 # it reads part of their contents from a memory region which has
     56 # an undefined value (the "holes" between the each actual element
     57 # of the array).
     58 
     59 gdb_test "print a1(1)@3" \
     60          " = \\(\\(i => 0, s => \"\"\\), \\(i => -?$decimal, s => .*\\), \\(i => -?$decimal, s => .*\\)\\)"
     61