e22f8b7c8c
Switch the license of all .f and .f90 files to GPLv3.
Switch the license of all .s and .S files to GPLv3.
82 lines
2.6 KiB
Text
82 lines
2.6 KiB
Text
# Copyright 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file is part of the gdb testsuite
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# Test casting, especially between class types or pointer-to-class
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# types.
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# This file is part of the gdb testsuite
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if $tracelevel then {
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strace $tracelevel
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}
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#
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# test running programs
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#
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set prms_id 0
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set bug_id 0
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if { [skip_cplus_tests] } { continue }
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set testfile "casts"
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set srcfile ${testfile}.cc
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set binfile ${objdir}/${subdir}/${testfile}
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if [get_compiler_info ${binfile} "c++"] {
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return -1;
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}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
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untested casts.exp
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return -1
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}
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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if ![runto_main] then {
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perror "couldn't run to breakpoint"
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continue
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}
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gdb_test "break [gdb_get_line_number "casts.exp: 1"]" \
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"Breakpoint.*at.* file .*" \
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""
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gdb_test "continue" "Breakpoint .* at .*casts.cc.*" ""
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# Casting a pointer to a base class to a pointer to a derived class
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# should yield the entire derived class. Until August 2002, GDB got
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# the enclosing type on `(B *) a' wrong: while the value's static type
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# was `B *', as it should be, the enclosing type (which is supposed to
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# be the dynamic type) was `A *'. It's senseless to have a static
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# type derived from the dynamic type; it should be the other way
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# 'round. Dereferencing this oddly typed pointer yielded a value in
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# which only the base class's members were initialized, since GDB uses
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# the enclosing type to decide how many bytes to read. Members from
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# the derived class were garbage, from GDB's address space.
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gdb_test "print * (B *) a" ".* = {<A> = {a = 42}, b = 1729}" \
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"cast base class pointer to derived class pointer"
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# Check also that we get the same results from letting the compiler do
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# the dereference.
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gdb_test "print * b" ".* = {<A> = {a = 42}, b = 1729}" \
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"let compiler cast base class pointer to derived class pointer"
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