gdb/testsuite/gdb.base/relational.exp

   1 # Copyright 1998-2015 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 #
  25 # test running programs
  26 #
  27
  28 if { [prepare_for_testing relational.exp relational int-type.c {debug nowarnings}] } {
  29     return -1
  30 }
  31
  32 if [get_compiler_info] {
  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
  56 gdb_test "print y" " = 2" "print value of y"
  57
  58 gdb_test "print z" " = 2" "print value of z"
  59
  60 gdb_test "print w" " = 3" "print value of w"
  61
  62 gdb_test "print x < y" "$false" "print value of x<y"
  63
  64 gdb_test "print x <= y" "$false" "print value of x<=y"
  65
  66 gdb_test "print x > y" "$true" "print value of x>y"
  67
  68 gdb_test "print x >= y" "$true" "print value of x>=y"
  69
  70 gdb_test "print x == y" "$false" "print value of x==y"
  71
  72 gdb_test "print x != y" "$true" "print value of x!=y"
  73
  74
  75 # Test associativity of <, >, <=, >=, ==, !=
  76
  77 gdb_test_no_output "set variable x=3" "set variable x"
  78 gdb_test_no_output "set variable y=5" "set variable y"
  79 gdb_test_no_output "set variable z=2" "set variable z"
  80
  81 gdb_test "print x < y < z" "$true" "print value of x<y<z"
  82
  83 gdb_test "print x <= y <= z" "$true" "print value of x<=y<=z"
  84
  85 gdb_test "print x > y > z" "$false" "print value of x>y>z"
  86
  87 gdb_test "print x >= y >= z" "$false" "print value of x>=y>=z"
  88
  89 gdb_test_no_output "set variable x=2" "set variable x"
  90 gdb_test_no_output "set variable y=2" "set variable y"
  91 gdb_test_no_output "set variable z=1" "set variable z"
  92
  93 gdb_test "print x == y == z" "$true" "print value of x==y==z"
  94
  95 gdb_test_no_output "set variable z=0" "set variable z"
  96
  97 gdb_test "print x != y != z" "$false" "print value of x!=y!=z"
  98
  99 # test precedence rules on pairs of relational operators
 100
 101 gdb_test_no_output "set variable x=0" "set variable x"
 102 gdb_test_no_output "set variable y=2" "set variable y"
 103 gdb_test_no_output "set variable z=2" "set variable z"
 104
 105 gdb_test "print x < y == z" "$false" "print value of x<y==z"
 106
 107 # 0  2  2
 108 gdb_test "print x < y != z" "$true" "print value of x<y!=z"
 109
 110 gdb_test_no_output "set variable x=2" "set variable x"
 111 gdb_test_no_output "set variable y=3" "set variable y"
 112 gdb_test_no_output "set variable z=1" "set variable z"
 113
 114
 115 # 2 3 1
 116 gdb_test "print x < y <= z" "$true" "print value of x<y<=z"
 117
 118 # 2 3 1
 119 gdb_test "print x < y >= z" "$true" "print value of x<y>=z"
 120
 121 gdb_test_no_output "set variable z=0" " set variable z"
 122
 123 # 2 3 0
 124 gdb_test "print x < y > z" "$true" "print value of x<y>z"
 125
 126 gdb_test_no_output "set variable x=1" " set variable x"
 127
 128 # 1 3 0
 129 gdb_test "print x > y >= z" "$true" "print value of x>y>=z"
 130
 131 gdb_test_no_output "set variable z=2" " set variable z"
 132
 133 # 1 3 2
 134 gdb_test "print x > y == z" "$false" "print value of x>y==z"
 135
 136 gdb_test_no_output "set variable x=2" " set variable x"
 137 gdb_test_no_output "set variable z=0" " set variable z"
 138
 139 # 2 3 0
 140 gdb_test "print x > y != z" "$false" "print value of x>y!=z"
 141
 142 gdb_test_no_output "set variable x=4" "set x to 4"
 143
 144 # 4 3 0
 145 gdb_test "print x > y <= z" "$false" "print value of x>y<=z"
 146
 147 # 4 3 0
 148 gdb_test "print x >= y == z" "$false" "print value of x>=y==z"
 149
 150 gdb_test_no_output "set variable x=2" " set variable x"
 151
 152 # 2 3 0
 153 gdb_test "print x >= y != z" "$false" "print value of x>=y!=z"
 154
 155 gdb_test_no_output "set variable x=0" " set variable x"
 156 gdb_test_no_output "set variable z=4" " set variable z"
 157
 158 # 0 3 4
 159 gdb_test "print x >= y <= z" "$true" "print value of x>=y<=z"
 160
 161 # 0 3 4
 162 gdb_test "print x <= y == z" "$false" "print value of x<=y==z"
 163
 164 gdb_test_no_output "set variable x=2" " set variable x"
 165
 166 # 2 3 4
 167 gdb_test "print x <= y != z" "$true" "print value of x<=y!=z"
 168
 169 # 2 3 4
 170 gdb_test "print x == y != z" "$true" "print value of x==y!=z"
 171
 172
 173
 174 # test use of parenthesis to enforce different order of evaluation
 175
 176 gdb_test_no_output "set variable z=0" " set variable z"
 177
 178 # 2 3 0
 179 gdb_test "print x >= (y < z)" "$true" "print value of x>=(y<z)"
 180
 181 # 2 3 0
 182 gdb_test "print x >= (y != z)" "$true" "print value of x>=(y!=z)"
 183
 184 # 2 3 0
 185 gdb_test "print x == (y == z)" "$false" "print value of x==(y==z)"
 186
 187 gdb_test_no_output "set variable x=1" " set variable x"
 188 gdb_test_no_output "set variable z=4" " set variable z"
 189
 190 # 1 3 4
 191 gdb_test "print (x == y) < z" "$true" "print value of (x==y)<z"
 192