mirror of
https://github.com/bminor/binutils-gdb.git
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1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
180 lines
4.9 KiB
C
180 lines
4.9 KiB
C
/* Self tests for offset types for GDB, the GNU debugger.
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Copyright (C) 2017-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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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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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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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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#include "defs.h"
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#include "gdbsupport/selftest.h"
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#include "gdbsupport/offset-type.h"
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#include "gdbsupport/underlying.h"
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#include "gdbsupport/valid-expr.h"
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namespace selftests {
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namespace offset_type {
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DEFINE_OFFSET_TYPE (off_A, unsigned int);
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DEFINE_OFFSET_TYPE (off_B, unsigned int);
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/* First, compile-time tests that:
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- make sure that incorrect operations with mismatching types are
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caught at compile time.
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- make sure that the same operations but involving the right types
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do compile and that they return the correct type.
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*/
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#define CHECK_VALID(VALID, EXPR_TYPE, EXPR) \
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CHECK_VALID_EXPR_2 (off_A, off_B, VALID, EXPR_TYPE, EXPR)
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off_A lval_a {};
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off_B lval_b {};
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using undrl = std::underlying_type<off_A>::type;
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/* Offset +/- underlying. */
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CHECK_VALID (true, off_A, off_A {} + undrl {});
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CHECK_VALID (true, off_A, off_A {} - undrl {});
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CHECK_VALID (true, off_A, undrl {} + off_A {});
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CHECK_VALID (true, off_A, undrl {} - off_A {});
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/* Add offset types. Both same and different. */
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CHECK_VALID (false, void, off_A {} + off_A {});
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CHECK_VALID (false, void, off_A {} + off_B {});
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/* Subtract offset types. Both same and different. */
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CHECK_VALID (false, void, off_B {} - off_A {});
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CHECK_VALID (true, undrl, off_A {} - off_A {});
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/* Add/assign offset types. Both same and different. */
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CHECK_VALID (false, void, lval_a += off_A {});
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CHECK_VALID (false, void, lval_a += off_B {});
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CHECK_VALID (false, void, lval_a -= off_A {});
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CHECK_VALID (false, void, lval_a -= off_B {});
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/* operator OP+= (offset, underlying), lvalue ref on the lhs. */
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CHECK_VALID (true, off_A&, lval_a += undrl {});
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CHECK_VALID (true, off_A&, lval_a -= undrl {});
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/* operator OP+= (offset, underlying), rvalue ref on the lhs. */
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CHECK_VALID (false, void, off_A {} += undrl {});
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CHECK_VALID (false, void, off_A {} -= undrl {});
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/* Rel ops, with same type. */
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CHECK_VALID (true, bool, off_A {} < off_A {});
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CHECK_VALID (true, bool, off_A {} > off_A {});
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CHECK_VALID (true, bool, off_A {} <= off_A {});
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CHECK_VALID (true, bool, off_A {} >= off_A {});
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/* Rel ops, with unrelated offset types. */
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CHECK_VALID (false, void, off_A {} < off_B {});
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CHECK_VALID (false, void, off_A {} > off_B {});
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CHECK_VALID (false, void, off_A {} <= off_B {});
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CHECK_VALID (false, void, off_A {} >= off_B {});
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/* Rel ops, with unrelated types. */
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CHECK_VALID (false, void, off_A {} < undrl {});
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CHECK_VALID (false, void, off_A {} > undrl {});
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CHECK_VALID (false, void, off_A {} <= undrl {});
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CHECK_VALID (false, void, off_A {} >= undrl {});
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static void
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run_tests ()
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{
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/* Test op+ and op-. */
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{
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constexpr off_A a {};
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static_assert (to_underlying (a) == 0, "");
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{
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constexpr off_A res1 = a + 2;
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static_assert (to_underlying (res1) == 2, "");
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constexpr off_A res2 = res1 - 1;
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static_assert (to_underlying (res2) == 1, "");
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}
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{
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constexpr off_A res1 = 2 + a;
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static_assert (to_underlying (res1) == 2, "");
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constexpr off_A res2 = 3 - res1;
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static_assert (to_underlying (res2) == 1, "");
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}
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}
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/* Test op+= and op-=. */
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{
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off_A o {};
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o += 10;
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SELF_CHECK (to_underlying (o) == 10);
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o -= 5;
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SELF_CHECK (to_underlying (o) == 5);
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}
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/* Test op-. */
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{
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constexpr off_A o1 = (off_A) 10;
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constexpr off_A o2 = (off_A) 20;
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constexpr unsigned int delta = o2 - o1;
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static_assert (delta == 10, "");
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}
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/* Test <, <=, >, >=. */
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{
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constexpr off_A o1 = (off_A) 10;
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constexpr off_A o2 = (off_A) 20;
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static_assert (o1 < o2, "");
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static_assert (!(o2 < o1), "");
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static_assert (o2 > o1, "");
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static_assert (!(o1 > o2), "");
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static_assert (o1 <= o2, "");
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static_assert (!(o2 <= o1), "");
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static_assert (o2 >= o1, "");
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static_assert (!(o1 >= o2), "");
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static_assert (o1 <= o1, "");
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static_assert (o1 >= o1, "");
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}
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}
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} /* namespace offset_type */
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} /* namespace selftests */
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void _initialize_offset_type_selftests ();
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void
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_initialize_offset_type_selftests ()
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{
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selftests::register_test ("offset_type", selftests::offset_type::run_tests);
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}
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