gdb/testsuite/gdb.base/relational.exp

   1 # Copyright 1998, 1999, 2007, 2008, 2009, 2010, 2011
   2 # Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # This file was written by Elena Zannoni (ezannoni@cygnus.com)
  18
  19 # This file is part of the gdb testsuite
  20 #
  21 # tests for correctenss of relational operators, associativity and precedence
  22 # with integer type variables
  23 #
  24
  25 if $tracelevel then {
  26         strace $tracelevel
  27         }
  28
  29 #
  30 # test running programs
  31 #
  32
  33 if { [prepare_for_testing relational.exp relational int-type.c {debug nowarnings}] } {
  34     return -1
  35 }
  36
  37 if [get_compiler_info not-used] {
  38     return -1;
  39 }
  40
  41 #
  42 # set it up at a breakpoint so we can play with the variable values
  43 #
  44
  45 if ![runto_main] then {
  46     perror "couldn't run to breakpoint"
  47     continue
  48 }
  49
  50 #
  51 # test expressions with "int" types
  52 #
  53
  54 gdb_test_no_output "set variable x=14" "set variable x=14"
  55 gdb_test_no_output "set variable y=2" "set variable y=2"
  56 gdb_test_no_output "set variable z=2" "set variable z=2"
  57 gdb_test_no_output "set variable w=3" "set variable w=3"
  58
  59 gdb_test "print x" " = 14" "print value of x"
  60
  61 gdb_test "print y" " = 2" "print value of y"
  62
  63 gdb_test "print z" " = 2" "print value of z"
  64
  65 gdb_test "print w" " = 3" "print value of w"
  66
  67 gdb_test "print x < y" "$false" "print value of x<y"
  68
  69 gdb_test "print x <= y" "$false" "print value of x<=y"
  70
  71 gdb_test "print x > y" "$true" "print value of x>y"
  72
  73 gdb_test "print x >= y" "$true" "print value of x>=y"
  74
  75 gdb_test "print x == y" "$false" "print value of x==y"
  76
  77 gdb_test "print x != y" "$true" "print value of x!=y"
  78
  79
  80 # Test associativity of <, >, <=, >=, ==, !=
  81
  82 gdb_test_no_output "set variable x=3" "set variable x"
  83 gdb_test_no_output "set variable y=5" "set variable y"
  84 gdb_test_no_output "set variable z=2" "set variable z"
  85
  86 gdb_test "print x < y < z" "$true" "print value of x<y<z"
  87
  88 gdb_test "print x <= y <= z" "$true" "print value of x<=y<=z"
  89
  90 gdb_test "print x > y > z" "$false" "print value of x>y>z"
  91
  92 gdb_test "print x >= y >= z" "$false" "print value of x>=y>=z"
  93
  94 gdb_test_no_output "set variable x=2" "set variable x"
  95 gdb_test_no_output "set variable y=2" "set variable y"
  96 gdb_test_no_output "set variable z=1" "set variable z"
  97
  98 gdb_test "print x == y == z" "$true" "print value of x==y==z"
  99
 100 gdb_test_no_output "set variable z=0" "set variable z"
 101
 102 gdb_test "print x != y != z" "$false" "print value of x!=y!=z"
 103
 104 # test precedence rules on pairs of relational operators
 105
 106 gdb_test_no_output "set variable x=0" "set variable x"
 107 gdb_test_no_output "set variable y=2" "set variable y"
 108 gdb_test_no_output "set variable z=2" "set variable z"
 109
 110 gdb_test "print x < y == z" "$false" "print value of x<y==z"
 111
 112 # 0  2  2
 113 gdb_test "print x < y != z" "$true" "print value of x<y!=z"
 114
 115 gdb_test_no_output "set variable x=2" "set variable x"
 116 gdb_test_no_output "set variable y=3" "set variable y"
 117 gdb_test_no_output "set variable z=1" "set variable z"
 118
 119
 120 # 2 3 1
 121 gdb_test "print x < y <= z" "$true" "print value of x<y<=z"
 122
 123 # 2 3 1
 124 gdb_test "print x < y >= z" "$true" "print value of x<y>=z"
 125
 126 gdb_test_no_output "set variable z=0" " set variable z"
 127
 128 # 2 3 0
 129 gdb_test "print x < y > z" "$true" "print value of x<y>z"
 130
 131 gdb_test_no_output "set variable x=1" " set variable x"
 132
 133 # 1 3 0
 134 gdb_test "print x > y >= z" "$true" "print value of x>y>=z"
 135
 136 gdb_test_no_output "set variable z=2" " set variable z"
 137
 138 # 1 3 2
 139 gdb_test "print x > y == z" "$false" "print value of x>y==z"
 140
 141 gdb_test_no_output "set variable x=2" " set variable x"
 142 gdb_test_no_output "set variable z=0" " set variable z"
 143
 144 # 2 3 0
 145 gdb_test "print x > y != z" "$false" "print value of x>y!=z"
 146
 147 gdb_test_no_output "set variable x=4" "set x to 4"
 148
 149 # 4 3 0
 150 gdb_test "print x > y <= z" "$false" "print value of x>y<=z"
 151
 152 # 4 3 0
 153 gdb_test "print x >= y == z" "$false" "print value of x>=y==z"
 154
 155 gdb_test_no_output "set variable x=2" " set variable x"
 156
 157 # 2 3 0
 158 gdb_test "print x >= y != z" "$false" "print value of x>=y!=z"
 159
 160 gdb_test_no_output "set variable x=0" " set variable x"
 161 gdb_test_no_output "set variable z=4" " set variable z"
 162
 163 # 0 3 4
 164 gdb_test "print x >= y <= z" "$true" "print value of x>=y<=z"
 165
 166 # 0 3 4
 167 gdb_test "print x <= y == z" "$false" "print value of x<=y==z"
 168
 169 gdb_test_no_output "set variable x=2" " set variable x"
 170
 171 # 2 3 4
 172 gdb_test "print x <= y != z" "$true" "print value of x<=y!=z"
 173
 174 # 2 3 4
 175 gdb_test "print x == y != z" "$true" "print value of x==y!=z"
 176
 177
 178
 179 # test use of parenthesis to enforce different order of evaluation
 180
 181 gdb_test_no_output "set variable z=0" " set variable z"
 182
 183 # 2 3 0
 184 gdb_test "print x >= (y < z)" "$true" "print value of x>=(y<z)"
 185
 186 # 2 3 0
 187 gdb_test "print x >= (y != z)" "$true" "print value of x>=(y!=z)"
 188
 189 # 2 3 0
 190 gdb_test "print x == (y == z)" "$false" "print value of x==(y==z)"
 191
 192 gdb_test_no_output "set variable x=1" " set variable x"
 193 gdb_test_no_output "set variable z=4" " set variable z"
 194
 195 # 1 3 4
 196 gdb_test "print (x == y) < z" "$true" "print value of (x==y)<z"
 197