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117 lines
3.9 KiB
C++
117 lines
3.9 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 regex_iterator<BidirectionalIterator, charT, traits>
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// regex_iterator operator++(int);
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#include <regex>
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#include <cassert>
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#include "test_macros.h"
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int main()
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{
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{
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std::regex phone_numbers("\\d{3}-\\d{4}");
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const char phone_book[] = "555-1234, 555-2345, 555-3456";
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std::cregex_iterator i(std::begin(phone_book), std::end(phone_book), phone_numbers);
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std::cregex_iterator i2 = i;
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assert(i != std::cregex_iterator());
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assert(i2!= std::cregex_iterator());
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assert((*i).size() == 1);
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assert((*i).position() == 0);
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assert((*i).str() == "555-1234");
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assert((*i2).size() == 1);
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assert((*i2).position() == 0);
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assert((*i2).str() == "555-1234");
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i++;
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assert(i != std::cregex_iterator());
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assert(i2!= std::cregex_iterator());
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assert((*i).size() == 1);
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assert((*i).position() == 10);
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assert((*i).str() == "555-2345");
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assert((*i2).size() == 1);
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assert((*i2).position() == 0);
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assert((*i2).str() == "555-1234");
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i++;
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assert(i != std::cregex_iterator());
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assert(i2!= std::cregex_iterator());
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assert((*i).size() == 1);
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assert((*i).position() == 20);
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assert((*i).str() == "555-3456");
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assert((*i2).size() == 1);
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assert((*i2).position() == 0);
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assert((*i2).str() == "555-1234");
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i++;
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assert(i == std::cregex_iterator());
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assert(i2!= std::cregex_iterator());
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assert((*i2).size() == 1);
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assert((*i2).position() == 0);
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assert((*i2).str() == "555-1234");
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}
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{
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std::regex phone_numbers("\\d{3}-\\d{4}");
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const char phone_book[] = "555-1234, 555-2345, 555-3456";
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std::cregex_iterator i(std::begin(phone_book), std::end(phone_book), phone_numbers);
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std::cregex_iterator i2 = i;
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assert(i != std::cregex_iterator());
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assert(i2!= std::cregex_iterator());
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assert((*i).size() == 1);
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assert((*i).position() == 0);
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assert((*i).str() == "555-1234");
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assert((*i2).size() == 1);
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assert((*i2).position() == 0);
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assert((*i2).str() == "555-1234");
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++i;
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assert(i != std::cregex_iterator());
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assert(i2!= std::cregex_iterator());
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assert((*i).size() == 1);
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assert((*i).position() == 10);
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assert((*i).str() == "555-2345");
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assert((*i2).size() == 1);
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assert((*i2).position() == 0);
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assert((*i2).str() == "555-1234");
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++i;
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assert(i != std::cregex_iterator());
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assert(i2!= std::cregex_iterator());
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assert((*i).size() == 1);
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assert((*i).position() == 20);
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assert((*i).str() == "555-3456");
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assert((*i2).size() == 1);
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assert((*i2).position() == 0);
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assert((*i2).str() == "555-1234");
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++i;
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assert(i == std::cregex_iterator());
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assert(i2!= std::cregex_iterator());
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assert((*i2).size() == 1);
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assert((*i2).position() == 0);
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assert((*i2).str() == "555-1234");
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}
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{ // https://bugs.llvm.org/show_bug.cgi?id=33681
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std::regex rex(".*");
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const char foo[] = "foo";
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// The -1 is because we don't want the implicit null from the array.
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std::cregex_iterator i(std::begin(foo), std::end(foo) - 1, rex);
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std::cregex_iterator e;
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assert(i != e);
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assert((*i).size() == 1);
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assert((*i).str() == "foo");
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++i;
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assert(i != e);
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assert((*i).size() == 1);
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assert((*i).str() == "");
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++i;
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assert(i == e);
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}
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}
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