cxx/test/strings/char.traits/char.traits.specializations/char.traits.specializations.char/compare.pass.cpp
2010-05-11 21:36:01 +00:00

41 lines
1.5 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <string>
// template<> struct char_traits<char>
// static int compare(const char_type* s1, const char_type* s2, size_t n);
#include <string>
#include <cassert>
int main()
{
assert(std::char_traits<char>::compare("", "", 0) == 0);
assert(std::char_traits<char>::compare("1", "1", 1) == 0);
assert(std::char_traits<char>::compare("1", "2", 1) < 0);
assert(std::char_traits<char>::compare("2", "1", 1) > 0);
assert(std::char_traits<char>::compare("12", "12", 2) == 0);
assert(std::char_traits<char>::compare("12", "13", 2) < 0);
assert(std::char_traits<char>::compare("12", "22", 2) < 0);
assert(std::char_traits<char>::compare("13", "12", 2) > 0);
assert(std::char_traits<char>::compare("22", "12", 2) > 0);
assert(std::char_traits<char>::compare("123", "123", 3) == 0);
assert(std::char_traits<char>::compare("123", "223", 3) < 0);
assert(std::char_traits<char>::compare("123", "133", 3) < 0);
assert(std::char_traits<char>::compare("123", "124", 3) < 0);
assert(std::char_traits<char>::compare("223", "123", 3) > 0);
assert(std::char_traits<char>::compare("133", "123", 3) > 0);
assert(std::char_traits<char>::compare("124", "123", 3) > 0);
}