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# Tests for anonymous union support.

# Copyright 1998, 1999, 2003, 2004, 2007, 2008, 2009, 2010

# Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see .

# Written by Satish Pai  1997-08-19

# This file is part of the gdb testsuite

if $tracelevel then {

        strace $tracelevel

        }

#

# test running programs

#

if { [skip_cplus_tests] } { continue }

set testfile "anon-union"

set srcfile ${testfile}.cc

set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {

     perror "Testcase compile failed" 0

     continue

}

# Start with a fresh gdb

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

if ![runto_main] then {

    perror "couldn't run to breakpoint"

    continue

}

gdb_test_no_output "set width 0"

#send_gdb "ptype foo\n"

#gdb_expect {

#   -re "\r\n$gdb_prompt $" {

#      pass "ptype foo"

#    }

#    -re ".*$gdb_prompt $" { fail "ptype foo" }

#    timeout { fail "(timeout) ptype foo" }

#}

#send_gdb "ptype bar\n"

#gdb_expect {

#   -re "\r\n$gdb_prompt $" {

#      pass "ptype foo"

#    }

#    -re ".*$gdb_prompt $" { fail "ptype foo" }

#    timeout { fail "(timeout) ptype foo" }

#}

# NOTE: Add -- ptype foo.x, etc. when things are working

#Initialize foo

gdb_test "next" "40\[ \t\]*foo.paper = 33;" "next 1"

# Print out the big anon union.

gdb_test "print foo" \

    "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 0, x = \{rock = 0, rock2 = 0\}, \{qux = 0, mux = 0\}, boulder = 0\}, \{paper = 0, cloth = 0\}, num2 = \{two = 0, three = 0\}\}" \

    "print foo 1"

# Step over assignment to member

gdb_test "next" "41\[ \t\]*foo.pebble = 44;" "next 2"

# Now print out anon union again

gdb_test "print foo" \

    "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 0, x = \{rock = 0, rock2 = 0\}, \{qux = 0, mux = 0\}, boulder = 0\}, \{paper = 33, cloth = 33\}, num2 = \{two = 0, three = 0\}\}" \

    "print foo 2"

# Modify the member just set

gdb_test_no_output "set var foo.cloth = 35" "set var foo.cloth"

# Now print out anon union again to see if the right member was set

gdb_test "print foo" \

    "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 0, x = \{rock = 0, rock2 = 0\}, \{qux = 0, mux = 0\}, boulder = 0\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \

    "print foo 3"

# Step over next assignment to member

gdb_test "next" "42\[ \t\]*foo.mux = 55;" "next 3"

# Now print out anon union again

gdb_test "print foo" \

    "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 44, x = \{rock = 44, rock2 = 0\}, \{qux = 44, mux = 44\}, boulder = 44\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \

    "print foo 4"

# Modify the member just set

gdb_test_no_output "set var foo.pebble = 45" "set var foo.pebble"

# Now print out anon union again to see if the right member was set

gdb_test "print foo" \

    "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 45, x = \{rock = 45, rock2 = 0\}, \{qux = 45, mux = 45\}, boulder = 45\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \

    "print foo 5"

# Modify another member at a different level

gdb_test_no_output "set var foo.qux = 46" "set var foo.qux"

# Now print out anon union again to see if the right member was set

gdb_test "print foo" \

    "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 46, x = \{rock = 46, rock2 = 0\}, \{qux = 46, mux = 46\}, boulder = 46\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \

    "print foo 6"

# Modify the member at another level, but not the first one in the union

gdb_test_no_output "set var foo.mux = 47" "set var foo.mux"

# Now print out anon union again to see if things worked

gdb_test "print foo" \

    "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 47, x = \{rock = 47, rock2 = 0\}, \{qux = 47, mux = 47\}, boulder = 47\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \

    "print foo 7"

# Modify a member of a struct in an anon union

gdb_test_no_output "set var foo.x.rock = 48" "set var foo.x.rock"

# Now print out anon union again to see if things worked

gdb_test "print foo" \

    "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 48, x = \{rock = 48, rock2 = 0\}, \{qux = 48, mux = 48\}, boulder = 48\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \

    "print foo 8"

# Modify a member of a struct in an anon union, but something

# that doesn't alias to some other union member

gdb_test_no_output "set var foo.x.rock2 = 49" "set var foo.x.rock2"

# Now print out anon union again to see if things worked

gdb_test "print foo" \

    "\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 48, x = \{rock = 48, rock2 = 49\}, \{qux = 48, mux = 48\}, boulder = 48\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \

    "print foo 9"

# Step over next four assignments

gdb_test "next 4" "53\[ \t\]*w = 45;" "next 4"

# Tests for anon unions that are not members of a class or struct

gdb_test "print w" "\\$\[0-9\]* = 0" "print w 1"

gdb_test "print z" "\\$\[0-9\]* = 0" "print z 1"

# Step over next assignment to w

gdb_test "next" "55\[ \t\]*int j = 0;" "next 5"

# See if the change in value is noticed

gdb_test "print w" "\\$\[0-9\]* = 45" "print w 2"

# See if z shows the same value

gdb_test "print z" "\\$\[0-9\]* = 45" "print z 2"

# Set the anon union member

gdb_test_no_output "set var z = 27" "set var z"

# See if the change in value is noticed

gdb_test "print w" "\\$\[0-9\]* = 27" "print w 3"

# See if z shows the same value

gdb_test "print z" "\\$\[0-9\]* = 27" "print z 3"