cxx/test/re/re.iter/re.tokiter/re.tokiter.deref/deref.pass.cpp

73 lines
2.5 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <regex>
// class regex_token_iterator<BidirectionalIterator, charT, traits>
// const value_type& operator*() const;
#include <regex>
#include <cassert>
int main()
{
{
std::regex phone_numbers("\\d{3}-\\d{4}");
const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book),
phone_numbers, -1);
assert(i != std::cregex_token_iterator());
assert((*i).str() == "start ");
++i;
assert(i != std::cregex_token_iterator());
assert((*i).str() == ", ");
++i;
assert(i != std::cregex_token_iterator());
assert((*i).str() == ", ");
++i;
assert(i != std::cregex_token_iterator());
assert((*i).str() == " end");
++i;
assert(i == std::cregex_token_iterator());
}
{
std::regex phone_numbers("\\d{3}-\\d{4}");
const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book),
phone_numbers);
assert(i != std::cregex_token_iterator());
assert((*i).str() == "555-1234");
++i;
assert(i != std::cregex_token_iterator());
assert((*i).str() == "555-2345");
++i;
assert(i != std::cregex_token_iterator());
assert((*i).str() == "555-3456");
++i;
assert(i == std::cregex_token_iterator());
}
{
std::regex phone_numbers("\\d{3}-(\\d{4})");
const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book),
phone_numbers, 1);
assert(i != std::cregex_token_iterator());
assert((*i).str() == "1234");
++i;
assert(i != std::cregex_token_iterator());
assert((*i).str() == "2345");
++i;
assert(i != std::cregex_token_iterator());
assert((*i).str() == "3456");
++i;
assert(i == std::cregex_token_iterator());
}
}