37 lines
936 B
C++
37 lines
936 B
C++
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. 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 length(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.length() == m[0].length());
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assert(m.length(0) == m[0].length());
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assert(m.length(1) == m[1].length());
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assert(m.length(2) == m[2].length());
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assert(m.length(3) == m[3].length());
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assert(m.length(4) == m[4].length());
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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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