derek.holloway
7502bf64a4
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67 lines
2.2 KiB
Plaintext
67 lines
2.2 KiB
Plaintext
# Copyright 2020-2024 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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# Test printing and subscripting flexible array members.
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standard_testfile
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if { [prepare_for_testing "failed to prepare" \
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${testfile} ${srcfile}] } {
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return
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}
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if { ![runto break_here] } {
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untested "could not run to break_here"
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return
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}
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# The various cases are:
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#
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# - ns: flexible array member with no size
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# - zs: flexible array member with size 0 (GNU C extension that predates the
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# standardization of the feature, but widely supported)
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# - zso: zero-size only, a corner case where the array is the sole member of
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# the structure
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# Print the whole structure.
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gdb_test "print *ns" " = {n = 3, items = $hex}"
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gdb_test "print *zs" " = {n = 3, items = $hex}"
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gdb_test "print *zso" " = {items = $hex}"
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# Print all items.
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gdb_test "print ns->items\[0\]" " = 101"
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gdb_test "print ns->items\[1\]" " = 102"
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gdb_test "print ns->items\[2\]" " = 103"
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gdb_test "print zs->items\[0\]" " = 201"
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gdb_test "print zs->items\[1\]" " = 202"
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gdb_test "print zs->items\[2\]" " = 203"
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gdb_test "print zso->items\[0\]" " = 301"
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gdb_test "print zso->items\[1\]" " = 302"
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gdb_test "print zso->items\[2\]" " = 303"
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# Check taking the address of array elements (how PR 28675 was originally
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# reported).
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gdb_test "print ns->items == &ns->items\[0\]" " = 1"
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gdb_test "print ns->items + 1 == &ns->items\[1\]" " = 1"
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gdb_test "print zs->items == &zs->items\[0\]" " = 1"
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gdb_test "print zs->items + 1 == &zs->items\[1\]" " = 1"
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gdb_test "print zso->items == &zso->items\[0\]" " = 1"
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gdb_test "print zso->items + 1 == &zso->items\[1\]" " = 1"
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