gdb/testsuite/gdb.base/whatis-exp.exp

   1 # Copyright 1998-2019 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 # This file was written by Elena Zannoni (ezannoni@cygnus.com)
  17
  18 # This file is part of the gdb testsuite
  19 #
  20 # tests for whatis command on expressions.
  21 # used in file eval.c. This flavor of whatis
  22 # command performs evaluation of expressions w/o actually
  23 # computing the value, but just the type
  24 # of the result. It goes through the evaluate_subexp_standard
  25 # with the EVAL_AVOID_SIDE_EFFECTS flag rather than EVAL_NORMAL
  26 #
  27
  28 #
  29 # test running programs
  30 #
  31
  32 if { [prepare_for_testing "failed to prepare" whatis-exp int-type.c {debug nowarnings}] } {
  33     return -1
  34 }
  35
  36 #
  37 # set it up at a breakpoint so we can play with the variable values
  38 #
  39
  40 if ![runto_main] then {
  41     perror "couldn't run to breakpoint"
  42     continue
  43 }
  44
  45 #
  46 # test expressions with "int" types
  47 #
  48
  49 gdb_test_no_output "set variable x=14" "set variable x=14"
  50 gdb_test_no_output "set variable y=2" "set variable y=2"
  51 gdb_test_no_output "set variable z=2" "set variable z=2"
  52 gdb_test_no_output "set variable w=3" "set variable w=3"
  53
  54 gdb_test "print x" " = 14" "print value of x"
  55 gdb_test "print y" " = 2" "print value of y"
  56 gdb_test "print z" " = 2" "print value of z"
  57 gdb_test "print w" " = 3" "print value of w"
  58
  59 gdb_test "whatis x+y" "type = int" "whatis value of x+y"
  60 gdb_test "whatis x-y" "type = int" "whatis value of x-y"
  61 gdb_test "whatis x*y" "type = int" "whatis value of x*y"
  62 gdb_test "whatis x/y" "type = int" "whatis value of x/y"
  63 gdb_test "whatis x%y" "type = int" "whatis value of x%y"
  64 gdb_test "whatis x=y" "type = int" "whatis value of x=y"
  65
  66 gdb_test "whatis x+=2" "type = int" "whatis value of x+=2"
  67 gdb_test "whatis ++x" "type = int" "whatis value of  ++x"
  68 gdb_test "whatis --x" "type = int" "whatis value of  --x"
  69 gdb_test "whatis x++" "type = int" "whatis value of  x++"
  70 gdb_test "whatis x--" "type = int" "whatis value of  x--"
  71
  72 gdb_exit
  73 return 0