c0f55cc689
This patch adds tests for the initial rvalue reference support patchset. All of the new tests are practically mirrored regular references tests and, except for the demangler ones, are introduced in new files, which are set to be compiled with -std=gnu++11. Tested are printing of rvalue reference types and values, rvalue reference parameters in function overloading, demangling of function names containing rvalue reference parameters, casts to rvalue reference types, application of the sizeof operator to rvalue reference types and values, and support for rvalue references within the gdb python module. gdb/ChnageLog PR gdb/14441 * NEWS: Mention support for rvalue references in GDB and python. * doc/gdb.texinfo (C Plus Plus Expressions): Mention that GDB supports both lvalue and rvalue references. gdb/testsuite/ChangeLog PR gdb/14441 * gdb.cp/demangle.exp: Add rvalue reference tests. * gdb.cp/rvalue-ref-casts.cc: New file. * gdb.cp/rvalue-ref-casts.exp: New file. * gdb.cp/rvalue-ref-overload.cc: New file. * gdb.cp/rvalue-ref-overload.exp: New file. * gdb.cp/rvalue-ref-params.cc: New file. * gdb.cp/rvalue-ref-params.exp: New file. * gdb.cp/rvalue-ref-sizeof.cc: New file. * gdb.cp/rvalue-ref-sizeof.exp: New file. * gdb.cp/rvalue-ref-types.cc: New file. * gdb.cp/rvalue-ref-types.exp: New file. * gdb.python/py-rvalue-ref-value-cc.cc: New file. * gdb.python/py-rvalue-ref-value-cc.exp: New file.
78 lines
2.5 KiB
Plaintext
78 lines
2.5 KiB
Plaintext
# Copyright 2002-2017 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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# C++11 rvalue reference type casting tests, based on gdb.cp/casts.exp.
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if {[skip_cplus_tests]} { continue }
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standard_testfile .cc
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if {[get_compiler_info "c++"]} {
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return -1
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}
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if {[prepare_for_testing $testfile.exp $testfile $srcfile \
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{debug c++ additional_flags="-std=gnu++11"}]} {
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return -1
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}
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if {![runto_main]} {
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untested "couldn't run to main"
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return -1
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}
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# Prevent symbol on address 0x0 being printed.
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gdb_test_no_output "set print symbol off"
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set line [gdb_get_line_number {rvalue-ref-casts.exp: 1}]
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gdb_test "break $line" "Breakpoint.*at.* file .*$srcfile, line $line\\." \
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"break at test location"
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gdb_test "continue" "Breakpoint .* at .*$srcfile:$line.*"
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# Check upcasting.
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gdb_test "print (A &&) br" ".* = .A &&.* {a = 42}" \
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"cast derived class rvalue reference to base class rvalue reference"
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# Check downcasting.
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gdb_test "print (B &&) ar" ".* = .B.* {<A> = {a = 42}, b = 1729}" \
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"cast base class rvalue reference to derived class rvalue reference"
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# Check compiler casting
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set nonzero_hex "0x\[0-9A-Fa-f\]\[0-9A-Fa-f\]+"
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gdb_test "print br" ".* = .B.* {<A> = {a = 42}, b = 1729}" \
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"let compiler cast base class rvalue reference to derived\
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class rvalue reference"
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gdb_test "print static_cast<A &&> (*b)" " = \\(A \\&\\&\\) @$hex: {a = 42}" \
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"static_cast to rvalue reference type"
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gdb_test "print reinterpret_cast<A &&> (*b)" \
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" = \\(A \\&\\&\\) @$hex: {a = 42}" \
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"reinterpret_cast to rvalue reference type"
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gdb_test "print dynamic_cast<Alpha &&> (derived)" \
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" = \\(Alpha \\&\\&\\) @$nonzero_hex: {.* = ${nonzero_hex}(\
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<vtable for Derived.*>)?}" \
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"dynamic_cast simple upcast to rvalue reference"
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gdb_test "print dynamic_cast<VirtuallyDerived &&> (*ad)" \
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"dynamic_cast failed" \
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"dynamic_cast to rvalue reference to non-existing base"
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