gdb/testsuite/gdb.base/arithmet.exp

   1 # Copyright 1998-2016 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 # Rewritten to use gdb_test by Michael Chastain (chastain@redhat.com)
  18
  19 # This file is part of the gdb testsuite
  20 #
  21 # tests for correctness of arithmetic operators, associativity and precedence
  22 # with integer type variables
  23 #
  24
  25 #
  26 # test running programs
  27 #
  28
  29 standard_testfile int-type.c
  30
  31 if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug nowarnings}]} {
  32     untested $testfile.exp
  33     return -1
  34 }
  35
  36
  37 #
  38 # set it up at a breakpoint so we can play with the variable values
  39 #
  40
  41 if ![runto_main] then {
  42     perror "couldn't run to breakpoint"
  43     continue
  44 }
  45
  46 #
  47 # test expressions with "int" types
  48 #
  49
  50 gdb_test_no_output "set variable x=14"
  51 gdb_test_no_output "set variable y=2"
  52 gdb_test_no_output "set variable z=2"
  53 gdb_test_no_output "set variable w=3"
  54
  55 gdb_test "print x" "14"
  56 gdb_test "print y"  "2"
  57 gdb_test "print z"  "2"
  58 gdb_test "print w"  "3"
  59
  60 gdb_test "print x+y" "16"
  61 gdb_test "print x-y" "12"
  62 gdb_test "print x*y" "28"
  63 gdb_test "print x/y"  "7"
  64 gdb_test "print x%y"  "0"
  65
  66 #  x  y  z  w
  67 # 14  2  2  3
  68
  69 # Test associativity of +, -, *, % ,/
  70
  71 gdb_test "print x+y+z" "18"
  72 gdb_test "print x-y-z" "10"
  73 gdb_test "print x*y*z" "56"
  74 gdb_test "print x/y/z"  "3"
  75 gdb_test "print x%y%z"  "0"
  76
  77 # test precedence rules on pairs of arithmetic operators
  78
  79 gdb_test_no_output "set variable x=10"
  80 gdb_test_no_output "set variable y=4"
  81
  82 #  x  y  z  w
  83 # 10  4  2  3
  84
  85 gdb_test "print x+y-z" "12"
  86 gdb_test "print x+y*z" "18"
  87 gdb_test "print x+y%w" "11"
  88 gdb_test "print x+y/w" "11"
  89 gdb_test "print x-y*z"  "2"
  90 gdb_test "print x-y%z" "10"
  91 gdb_test "print x-y/z"  "8"
  92 gdb_test "print x*y/z" "20"
  93 gdb_test "print x*y%w"  "1"
  94 gdb_test "print x/y%w"  "2"
  95
  96 # test use of parentheses to enforce different order of evaluation
  97
  98 gdb_test "print x-(y+w)"  "3"
  99 gdb_test "print x/(y*w)"  "0"
 100 gdb_test "print x-(y/w)"  "9"
 101 gdb_test "print (x+y)*w" "42"