forked from OSchip/llvm-project
37 lines
1.0 KiB
C++
37 lines
1.0 KiB
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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// class match_results<BidirectionalIterator, Allocator>
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// difference_type position(size_type sub = 0) const;
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#include <regex>
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#include <cassert>
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void
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test()
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{
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std::match_results<const char*> m;
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const char s[] = "abcdefghijk";
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assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
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assert(m.position() == std::distance(s, m[0].first));
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assert(m.position(0) == std::distance(s, m[0].first));
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assert(m.position(1) == std::distance(s, m[1].first));
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assert(m.position(2) == std::distance(s, m[2].first));
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assert(m.position(3) == std::distance(s, m[3].first));
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assert(m.position(4) == std::distance(s, m[4].first));
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}
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int main()
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{
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test();
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}
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