gdb/testsuite/gdb.cp/rvalue-ref-types.exp

# Copyright 1999-2020 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/>.

# Tests for reference types with short type variables in GDB, based on
# gdb.cp/ref-types.exp.

if { [skip_cplus_tests] } { continue }

standard_testfile .cc

if {[prepare_for_testing $testfile.exp $testfile $srcfile \
    {debug c++ additional_flags="-std=gnu++11"}]} {
    return -1
}

#
# Set it up at a breakpoint so we can play with the variable values.
#
if {![runto_main]} {
    untested "couldn't run to breakpoint"
    return -1
}

if {![runto 'marker1']} {
    untested "couldn't run to marker1"
    return -1
}

gdb_test "up" ".*main.*" "up from marker1 1"

gdb_test "print rrt" " = \\(short( int)? &&\\) @$hex: -1" "print value of rrt" 

gdb_test "ptype rrt" "type = short( int)? &&"

gdb_test "print *rrpt" ".$decimal = -1" "print value of *rrpt"

# gdb had a bug about dereferencing a pointer type
# that would lead to wrong results
# if we try to examine memory at pointer value.

gdb_test "x /hd rrpt" "$hex:\[ \t\]*-1" "examine value at rrpt"

gdb_test "ptype rrpt" "type = short( int)? \\*&&"

gdb_test "print rrat\[0\]" ".$decimal = 0" "print value of rrat\[0\]"

gdb_test "ptype rrat" "type = short( int)? \\\(&&\\\)\\\[4\\\]"

gdb_test "print rrat\[1\]" ".$decimal = 1" "print value of rrat\[1\]"
gdb_test "print rrat\[2\]" ".$decimal = 2" "print value of rrat\[2\]"
gdb_test "print rrat\[3\]" ".$decimal = 3" "print value of rrat\[3\]"


if {![runto 'f']} then {
    perror "couldn't run to f"
    continue
}

gdb_test "up" ".main2.*" "up from f"

gdb_test "ptype rrC" "type = char &&"

gdb_test "ptype rrUC" "type = unsigned char &&"

gdb_test "ptype rrS" "type = short( int)? &&"

gdb_test "ptype rrUS" "type = unsigned short( int)? &&"

gdb_test "ptype rrI" "type = int &&"

gdb_test "ptype rrUI" "type = unsigned int &&"

gdb_test "ptype rrL" "type = long( int)? &&"

gdb_test "ptype rrUL" "type = unsigned long( int)? &&"

gdb_test "ptype rrF" "type = float &&"

gdb_test "ptype rrD" "type = double &&"

gdb_test "print rrC" "$decimal = \\(char &&\\) @$hex: 65 \'A\'" \
    "print value of rrC"

gdb_test "print rrUC" \
    "$decimal = \\(unsigned char &&\\) @$hex: 21 \'.025\'" \
    "print value of rrUC"

gdb_test "print rrS" "$decimal = \\(short( int)? &&\\) @$hex: -14" \
                  "print value of rrS"

gdb_test "print rrUS" \
         "$decimal = \\(unsigned short( int)? &&\\) @$hex: 7" \
         "print value of rrUS"

gdb_test "print rrI" "$decimal = \\(int &&\\) @$hex: 102" \
       "print value of rrI"

gdb_test "print rrUI" \
    "$decimal = \\(unsigned int &&\\) @$hex: 1002" \
        "print value of rrUI"

gdb_test "print rrL" \
       "$decimal = \\(long( int)? &&\\) @$hex: -234" \
         "print value of rrL"

gdb_test "print rrUL" \
    "$decimal = \\((unsigned long|long unsigned int)? &&\\) @$hex: 234" \
    "print value of rrUL"

gdb_test "print rrF" \
    "$decimal = \\(float &&\\) @$hex: 1.2${decimal}e\\+0?10.*" \
    "print value of rrF"

gdb_test "print rrD" \
    "$decimal = \\(double &&\\) @$hex: -1.375e-123.*" \
    "print value of rrD"