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7f6e8e2141
Summary:
The synopsis in C++11 subclause 28.8 [re.regex] has:
```
basic_regex(const charT* p, size_t len,
flag_type f = regex_constants::ECMAScript);
```
The default argument is added to libc++ by this change.
Reviewers: mclow.lists, rsmith, hubert.reinterpretcast
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D22702
Reapplies r277966.
Patch by Jason Liu!
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@277968 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1023 B
C++
40 lines
1023 B
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <regex>
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// template <class charT, class traits = regex_traits<charT>> class basic_regex;
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// basic_regex(const charT* p, size_t len);
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#include <regex>
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#include <cassert>
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template <class CharT>
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void
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test(const CharT* p, std::size_t len, unsigned mc)
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{
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std::basic_regex<CharT> r(p, len);
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assert(r.flags() == std::regex_constants::ECMAScript);
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assert(r.mark_count() == mc);
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}
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int main()
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{
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test("\\(a\\)", 5, 0);
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test("\\(a[bc]\\)", 9, 0);
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test("\\(a\\([bc]\\)\\)", 13, 0);
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test("(a([bc]))", 9, 2);
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test("(\0)(b)(c)(d)", 12, 4);
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test("(\0)(b)(c)(d)", 9, 3);
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test("(\0)(b)(c)(d)", 3, 1);
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test("(\0)(b)(c)(d)", 0, 0);
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}
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