gdb/testsuite/gdb.base/arithmet.exp

   1 # Copyright 1998, 1999, 2001, 2007, 2008, 2009 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 if $tracelevel then {
  26         strace $tracelevel
  27         }
  28
  29 #
  30 # test running programs
  31 #
  32 set prms_id 0
  33 set bug_id 0
  34
  35 set testfile "int-type"
  36 set srcfile ${testfile}.c
  37 set binfile ${objdir}/${subdir}/${testfile}
  38
  39 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
  40      untested arithmet.exp
  41      return -1
  42     }
  43
  44 gdb_exit
  45 gdb_start
  46 gdb_reinitialize_dir $srcdir/$subdir
  47 gdb_load ${binfile}
  48
  49
  50 #
  51 # set it up at a breakpoint so we can play with the variable values
  52 #
  53
  54 if ![runto_main] then {
  55     perror "couldn't run to breakpoint"
  56     continue
  57 }
  58
  59 #
  60 # test expressions with "int" types
  61 #
  62
  63 gdb_test "set variable x=14" ""
  64 gdb_test "set variable y=2"  ""
  65 gdb_test "set variable z=2"  ""
  66 gdb_test "set variable w=3"  ""
  67
  68 gdb_test "print x" "14"
  69 gdb_test "print y"  "2"
  70 gdb_test "print z"  "2"
  71 gdb_test "print w"  "3"
  72
  73 gdb_test "print x+y" "16"
  74 gdb_test "print x-y" "12"
  75 gdb_test "print x*y" "28"
  76 gdb_test "print x/y"  "7"
  77 gdb_test "print x%y"  "0"
  78
  79 #  x  y  z  w
  80 # 14  2  2  3
  81
  82 # Test associativity of +, -, *, % ,/
  83
  84 gdb_test "print x+y+z" "18"
  85 gdb_test "print x-y-z" "10"
  86 gdb_test "print x*y*z" "56"
  87 gdb_test "print x/y/z"  "3"
  88 gdb_test "print x%y%z"  "0"
  89
  90 # test precedence rules on pairs of arithmetic operators
  91
  92 gdb_test "set variable x=10" ""
  93 gdb_test "set variable y=4"  ""
  94
  95 #  x  y  z  w
  96 # 10  4  2  3
  97
  98 gdb_test "print x+y-z" "12"
  99 gdb_test "print x+y*z" "18"
 100 gdb_test "print x+y%w" "11"
 101 gdb_test "print x+y/w" "11"
 102 gdb_test "print x-y*z"  "2"
 103 gdb_test "print x-y%z" "10"
 104 gdb_test "print x-y/z"  "8"
 105 gdb_test "print x*y/z" "20"
 106 gdb_test "print x*y%w"  "1"
 107 gdb_test "print x/y%w"  "2"
 108
 109 # test use of parentheses to enforce different order of evaluation
 110
 111 gdb_test "print x-(y+w)"  "3"
 112 gdb_test "print x/(y*w)"  "0"
 113 gdb_test "print x-(y/w)"  "9"
 114 gdb_test "print (x+y)*w" "42"