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e5294f1da1
This commit adds tests that repeated characters in regular expressions
are within numeric limits, and that a <= b in a regex like `x{a,b}`.
Thanks to Andrey Maksimov for the patch.
Differential Revision: https://reviews.llvm.org/D62816
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@362525 91177308-0d34-0410-b5e6-96231b3b80d8
68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <regex>
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// UNSUPPORTED: libcpp-no-exceptions
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// UNSUPPORTED: c++98, c++03
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// the "n" and "m" in `a{n,m}` should be within the numeric limits.
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// requirement "m >= n" should be checked.
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#include <regex>
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#include <cassert>
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#include "test_macros.h"
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int main(int, char**) {
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// test that `n <= m`
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for (std::regex_constants::syntax_option_type op :
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{std::regex::basic}) {
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try {
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TEST_IGNORE_NODISCARD std::regex("a\\{3,2\\}", op);
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assert(false);
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} catch (const std::regex_error &e) {
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assert(e.code() == std::regex_constants::error_badbrace);
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LIBCPP_ASSERT(e.code() == std::regex_constants::error_badbrace);
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}
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}
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for (std::regex_constants::syntax_option_type op :
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{std::regex::ECMAScript, std::regex::extended, std::regex::egrep,
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std::regex::awk}) {
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try {
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TEST_IGNORE_NODISCARD std::regex("a{3,2}", op);
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assert(false);
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} catch (const std::regex_error &e) {
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assert(e.code() == std::regex_constants::error_badbrace);
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LIBCPP_ASSERT(e.code() == std::regex_constants::error_badbrace);
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}
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}
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// test that both bounds are within the limit
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for (std::regex_constants::syntax_option_type op :
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{std::regex::basic}) {
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try {
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TEST_IGNORE_NODISCARD std::regex("a\\{100000000000000000000,10000000000000000000\\}", op);
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assert(false);
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} catch (const std::regex_error &e) {
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assert(e.code() == std::regex_constants::error_badbrace);
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LIBCPP_ASSERT(e.code() == std::regex_constants::error_badbrace);
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}
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}
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for (std::regex_constants::syntax_option_type op :
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{std::regex::ECMAScript, std::regex::extended, std::regex::egrep,
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std::regex::awk}) {
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try {
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TEST_IGNORE_NODISCARD std::regex("a{100000000000000000000,10000000000000000000}", op);
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assert(false);
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} catch (const std::regex_error &e) {
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assert(e.code() == std::regex_constants::error_badbrace);
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LIBCPP_ASSERT(e.code() == std::regex_constants::error_badbrace);
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}
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}
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return 0;
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}
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