gnu/dist/gdb6/gdb/testsuite/gdb.base/arithmet.exp

   1 # Copyright 1998, 1999, 2001 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 2 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, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  16
  17 # Please email any bugs, comments, and/or additions to this file to:
  18 # bug-gdb@prep.ai.mit.edu
  19
  20 # This file was written by Elena Zannoni (ezannoni@cygnus.com)
  21 # Rewritten to use gdb_test by Michael Chastain (chastain@redhat.com)
  22
  23 # This file is part of the gdb testsuite
  24 #
  25 # tests for correctness of arithmetic operators, associativity and precedence
  26 # with integer type variables
  27 #
  28
  29 if $tracelevel then {
  30         strace $tracelevel
  31         }
  32
  33 #
  34 # test running programs
  35 #
  36 set prms_id 0
  37 set bug_id 0
  38
  39 set testfile "int-type"
  40 set srcfile ${testfile}.c
  41 set binfile ${objdir}/${subdir}/${testfile}
  42
  43 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
  44      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  45     }
  46
  47 gdb_exit
  48 gdb_start
  49 gdb_reinitialize_dir $srcdir/$subdir
  50 gdb_load ${binfile}
  51
  52
  53 #
  54 # set it up at a breakpoint so we can play with the variable values
  55 #
  56
  57 if ![runto_main] then {
  58     perror "couldn't run to breakpoint"
  59     continue
  60 }
  61
  62 #
  63 # test expressions with "int" types
  64 #
  65
  66 gdb_test "set variable x=14" ""
  67 gdb_test "set variable y=2"  ""
  68 gdb_test "set variable z=2"  ""
  69 gdb_test "set variable w=3"  ""
  70
  71 gdb_test "print x" "14"
  72 gdb_test "print y"  "2"
  73 gdb_test "print z"  "2"
  74 gdb_test "print w"  "3"
  75
  76 gdb_test "print x+y" "16"
  77 gdb_test "print x-y" "12"
  78 gdb_test "print x*y" "28"
  79 gdb_test "print x/y"  "7"
  80 gdb_test "print x%y"  "0"
  81
  82 #  x  y  z  w
  83 # 14  2  2  3
  84
  85 # Test associativity of +, -, *, % ,/
  86
  87 gdb_test "print x+y+z" "18"
  88 gdb_test "print x-y-z" "10"
  89 gdb_test "print x*y*z" "56"
  90 gdb_test "print x/y/z"  "3"
  91 gdb_test "print x%y%z"  "0"
  92
  93 # test precedence rules on pairs of arithmetic operators
  94
  95 gdb_test "set variable x=10" ""
  96 gdb_test "set variable y=4"  ""
  97
  98 #  x  y  z  w
  99 # 10  4  2  3
 100
 101 gdb_test "print x+y-z" "12"
 102 gdb_test "print x+y*z" "18"
 103 gdb_test "print x+y%w" "11"
 104 gdb_test "print x+y/w" "11"
 105 gdb_test "print x-y*z"  "2"
 106 gdb_test "print x-y%z" "10"
 107 gdb_test "print x-y/z"  "8"
 108 gdb_test "print x*y/z" "20"
 109 gdb_test "print x*y%w"  "1"
 110 gdb_test "print x/y%w"  "2"
 111
 112 # test use of parentheses to enforce different order of evaluation
 113
 114 gdb_test "print x-(y+w)"  "3"
 115 gdb_test "print x/(y*w)"  "0"
 116 gdb_test "print x-(y/w)"  "9"
 117 gdb_test "print (x+y)*w" "42"