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libcxx/test/std/re/re.results/re.results.acc/prefix.pass.cpp

36 lines
822 B
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <regex>
// class match_results<BidirectionalIterator, Allocator>
// const_reference prefix() const;
#include <regex>
#include <cassert>
#include "test_macros.h"
void
test()
{
std::match_results<const char*> m;
const char s[] = "abcdefghijk";
assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
assert(m.prefix().first == s);
assert(m.prefix().second == s+2);
assert(m.prefix().matched == true);
}
int main()
{
test();
}