gdb/testsuite/gdb.base/relational.exp

   1 # Copyright 1998, 1999, 2007, 2008, 2009, 2010 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 correctenss of relational operators, associativity and precedence
  21 # with integer type variables
  22 #
  23
  24 if $tracelevel then {
  25         strace $tracelevel
  26         }
  27
  28 #
  29 # test running programs
  30 #
  31
  32 if { [prepare_for_testing relational.exp relational int-type.c {debug nowarnings}] } {
  33     return -1
  34 }
  35
  36 if [get_compiler_info not-used] {
  37     return -1;
  38 }
  39
  40 #
  41 # set it up at a breakpoint so we can play with the variable values
  42 #
  43
  44 if ![runto_main] then {
  45     perror "couldn't run to breakpoint"
  46     continue
  47 }
  48
  49 #
  50 # test expressions with "int" types
  51 #
  52
  53 gdb_test_no_output "set variable x=14" "set variable x=14"
  54 gdb_test_no_output "set variable y=2" "set variable y=2"
  55 gdb_test_no_output "set variable z=2" "set variable z=2"
  56 gdb_test_no_output "set variable w=3" "set variable w=3"
  57
  58 gdb_test "print x" " = 14" "print value of x"
  59
  60 gdb_test "print y" " = 2" "print value of y"
  61
  62 gdb_test "print z" " = 2" "print value of z"
  63
  64 gdb_test "print w" " = 3" "print value of w"
  65
  66 gdb_test "print x < y" "$false" "print value of x<y"
  67
  68 gdb_test "print x <= y" "$false" "print value of x<=y"
  69
  70 gdb_test "print x > y" "$true" "print value of x>y"
  71
  72 gdb_test "print x >= y" "$true" "print value of x>=y"
  73
  74 gdb_test "print x == y" "$false" "print value of x==y"
  75
  76 gdb_test "print x != y" "$true" "print value of x!=y"
  77
  78
  79 # Test associativity of <, >, <=, >=, ==, !=
  80
  81 gdb_test_no_output "set variable x=3" "set variable x"
  82 gdb_test_no_output "set variable y=5" "set variable y"
  83 gdb_test_no_output "set variable z=2" "set variable z"
  84
  85 gdb_test "print x < y < z" "$true" "print value of x<y<z"
  86
  87 gdb_test "print x <= y <= z" "$true" "print value of x<=y<=z"
  88
  89 gdb_test "print x > y > z" "$false" "print value of x>y>z"
  90
  91 gdb_test "print x >= y >= z" "$false" "print value of x>=y>=z"
  92
  93 gdb_test_no_output "set variable x=2" "set variable x"
  94 gdb_test_no_output "set variable y=2" "set variable y"
  95 gdb_test_no_output "set variable z=1" "set variable z"
  96
  97 gdb_test "print x == y == z" "$true" "print value of x==y==z"
  98
  99 gdb_test_no_output "set variable z=0" "set variable z"
 100
 101 gdb_test "print x != y != z" "$false" "print value of x!=y!=z"
 102
 103 # test precedence rules on pairs of relational operators
 104
 105 gdb_test_no_output "set variable x=0" "set variable x"
 106 gdb_test_no_output "set variable y=2" "set variable y"
 107 gdb_test_no_output "set variable z=2" "set variable z"
 108
 109 gdb_test "print x < y == z" "$false" "print value of x<y==z"
 110
 111 # 0  2  2
 112 gdb_test "print x < y != z" "$true" "print value of x<y!=z"
 113
 114 gdb_test_no_output "set variable x=2" "set variable x"
 115 gdb_test_no_output "set variable y=3" "set variable y"
 116 gdb_test_no_output "set variable z=1" "set variable z"
 117
 118
 119 # 2 3 1
 120 gdb_test "print x < y <= z" "$true" "print value of x<y<=z"
 121
 122 # 2 3 1
 123 gdb_test "print x < y >= z" "$true" "print value of x<y>=z"
 124
 125 gdb_test_no_output "set variable z=0" " set variable z"
 126
 127 # 2 3 0
 128 gdb_test "print x < y > z" "$true" "print value of x<y>z"
 129
 130 gdb_test_no_output "set variable x=1" " set variable x"
 131
 132 # 1 3 0
 133 gdb_test "print x > y >= z" "$true" "print value of x>y>=z"
 134
 135 gdb_test_no_output "set variable z=2" " set variable z"
 136
 137 # 1 3 2
 138 gdb_test "print x > y == z" "$false" "print value of x>y==z"
 139
 140 gdb_test_no_output "set variable x=2" " set variable x"
 141 gdb_test_no_output "set variable z=0" " set variable z"
 142
 143 # 2 3 0
 144 gdb_test "print x > y != z" "$false" "print value of x>y!=z"
 145
 146 gdb_test_no_output "set variable x=4" "set x to 4"
 147
 148 # 4 3 0
 149 gdb_test "print x > y <= z" "$false" "print value of x>y<=z"
 150
 151 # 4 3 0
 152 gdb_test "print x >= y == z" "$false" "print value of x>=y==z"
 153
 154 gdb_test_no_output "set variable x=2" " set variable x"
 155
 156 # 2 3 0
 157 gdb_test "print x >= y != z" "$false" "print value of x>=y!=z"
 158
 159 gdb_test_no_output "set variable x=0" " set variable x"
 160 gdb_test_no_output "set variable z=4" " set variable z"
 161
 162 # 0 3 4
 163 gdb_test "print x >= y <= z" "$true" "print value of x>=y<=z"
 164
 165 # 0 3 4
 166 gdb_test "print x <= y == z" "$false" "print value of x<=y==z"
 167
 168 gdb_test_no_output "set variable x=2" " set variable x"
 169
 170 # 2 3 4
 171 gdb_test "print x <= y != z" "$true" "print value of x<=y!=z"
 172
 173 # 2 3 4
 174 gdb_test "print x == y != z" "$true" "print value of x==y!=z"
 175
 176
 177
 178 # test use of parenthesis to enforce different order of evaluation
 179
 180 gdb_test_no_output "set variable z=0" " set variable z"
 181
 182 # 2 3 0
 183 gdb_test "print x >= (y < z)" "$true" "print value of x>=(y<z)"
 184
 185 # 2 3 0
 186 gdb_test "print x >= (y != z)" "$true" "print value of x>=(y!=z)"
 187
 188 # 2 3 0
 189 gdb_test "print x == (y == z)" "$false" "print value of x==(y==z)"
 190
 191 gdb_test_no_output "set variable x=1" " set variable x"
 192 gdb_test_no_output "set variable z=4" " set variable z"
 193
 194 # 1 3 4
 195 gdb_test "print (x == y) < z" "$true" "print value of (x==y)<z"
 196