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libcxx_old/test/std/re/re.regex/re.regex.construct/string.pass.cpp

38 lines
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C++

//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <regex>
// template <class charT, class traits = regex_traits<charT>> class basic_regex;
// template <class ST, class SA>
// basic_regex(const basic_string<charT, ST, SA>& s);
#include <regex>
#include <cassert>
#include "test_macros.h"
template <class String>
void
test(const String& p, unsigned mc)
{
std::basic_regex<typename String::value_type> r(p);
assert(r.flags() == std::regex_constants::ECMAScript);
assert(r.mark_count() == mc);
}
int main(int, char**)
{
test(std::string("\\(a\\)"), 0);
test(std::string("\\(a[bc]\\)"), 0);
test(std::string("\\(a\\([bc]\\)\\)"), 0);
test(std::string("(a([bc]))"), 2);
return 0;
}