gdb/testsuite/gdb.cp/vla-cxx.exp

# Copyright 2014-2025 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 <http://www.gnu.org/licenses/>.

standard_testfile .cc

set flags {}
lappend flags debug
lappend flags c++

if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} $flags] } {
    return -1
}

if ![runto_main] {
    return -1
}

gdb_breakpoint [gdb_get_line_number "Before pointer assignment"]
gdb_continue_to_breakpoint "Before pointer assignment"

gdb_test "ptype ptr" "= int \\(\\*\\)\\\[variable length\\\]" \
    "ptype ptr, before pointer assignment"

gdb_test "print ptr" "= \\(int \\(\\*\\)\\\[variable length\\\]\\) 0x0" \
    "print ptr, before pointer assignment"

gdb_test "print *ptr" "Cannot access memory at address 0x0" \
    "print *ptr, before pointer assignment"

gdb_breakpoint [gdb_get_line_number "vlas_filled"]
gdb_continue_to_breakpoint "vlas_filled"

gdb_test "print vla" " = \\{5, 7, 9\\}"
gdb_test "print vlaref" " = \\(int \\(&\\)\\\[3\\\]\\) @$hex: \\{5, 7, 9\\}"
# The ".*" here is because what gdb emits currently is "const
# vlareftypedef", which seems incorrect -- and since that isn't the
# bug being tested, it's better not to depend on the exact spelling.
gdb_test "print vlaref2" " = \\(.*\\) @$hex: \\{5, 7, 9\\}"
gdb_test "print c" " = \\{e = \\{c = @$hex\\}\\}"
gdb_test "ptype ptr" "int \\(\\*\\)\\\[3\\\]"
gdb_test "print ptr" "\\(int \\(\\*\\)\\\[3\\\]\\) $hex"
gdb_test "print *ptr" " = \\{5, 7, 9\\}"