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[libc++] Use bounded iterators in std::string_view when the debug mod…
…e is enabled Differential Revision: https://reviews.llvm.org/D142903
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...xx/test/libcxx/strings/string.view/string.view.iterators/debug.iterator-indexing.pass.cpp
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| //===----------------------------------------------------------------------===// | ||
| // | ||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| // See https://llvm.org/LICENSE.txt for license information. | ||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| // Make sure that std::string_view's iterators check for OOB accesses when the debug mode is enabled. | ||
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| // REQUIRES: has-unix-headers | ||
| // UNSUPPORTED: !libcpp-has-debug-mode | ||
|
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| #include <string_view> | ||
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| #include "check_assertion.h" | ||
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| int main(int, char**) { | ||
| // string_view::iterator | ||
| { | ||
| std::string_view const str("hello world"); | ||
| { | ||
| auto it = str.end(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(*it, "__bounded_iter::operator*: Attempt to dereference an out-of-range iterator"); | ||
| } | ||
| { | ||
| auto it = str.end(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(it.operator->(), "__bounded_iter::operator->: Attempt to dereference an out-of-range iterator"); | ||
| } | ||
| { | ||
| auto it = str.begin(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(it[99], "__bounded_iter::operator[]: Attempt to index an iterator out-of-range"); | ||
| } | ||
| } | ||
|
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| // string_view::const_iterator | ||
| { | ||
| std::string_view const str("hello world"); | ||
| { | ||
| auto it = str.cend(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(*it, "__bounded_iter::operator*: Attempt to dereference an out-of-range iterator"); | ||
| } | ||
| { | ||
| auto it = str.cend(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(it.operator->(), "__bounded_iter::operator->: Attempt to dereference an out-of-range iterator"); | ||
| } | ||
| { | ||
| auto it = str.cbegin(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(it[99], "__bounded_iter::operator[]: Attempt to index an iterator out-of-range"); | ||
| } | ||
| } | ||
|
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| // string_view::reverse_iterator | ||
| { | ||
| std::string_view const str("hello world"); | ||
| { | ||
| auto it = str.rend(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(*it, "__bounded_iter::operator*: Attempt to dereference an out-of-range iterator"); | ||
| } | ||
| { | ||
| auto it = str.rend(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(it.operator->(), "__bounded_iter::operator->: Attempt to dereference an out-of-range iterator"); | ||
| } | ||
| { | ||
| auto it = str.rbegin(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(it[99], "__bounded_iter::operator*: Attempt to dereference an out-of-range iterator"); | ||
| } | ||
| } | ||
|
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| // string_view::const_reverse_iterator | ||
| { | ||
| std::string_view const str("hello world"); | ||
| { | ||
| auto it = str.crend(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(*it, "__bounded_iter::operator*: Attempt to dereference an out-of-range iterator"); | ||
| } | ||
| { | ||
| auto it = str.crend(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(it.operator->(), "__bounded_iter::operator->: Attempt to dereference an out-of-range iterator"); | ||
| } | ||
| { | ||
| auto it = str.crbegin(); | ||
| TEST_LIBCPP_ASSERT_FAILURE(it[99], "__bounded_iter::operator*: Attempt to dereference an out-of-range iterator"); | ||
| } | ||
| } | ||
|
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| return 0; | ||
| } |
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