test/std/extensions/hash/specializations.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     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.
//
//===----------------------------------------------------------------------===//

// NOTE: Undefined __DEPRECATED to prevent this test from failing with -Werror
#undef __DEPRECATED
#include <assert.h>
#include <ext/hash_map>
#include <string>

int main()
{
    char str[] = "test";
    assert(__gnu_cxx::hash<const char *>()("test") ==
           std::hash<std::string>()("test"));
    assert(__gnu_cxx::hash<char *>()(str) == std::hash<std::string>()("test"));
    assert(__gnu_cxx::hash<char>()(42) == 42);
    assert(__gnu_cxx::hash<signed char>()(42) == 42);
    assert(__gnu_cxx::hash<unsigned char>()(42) == 42);
    assert(__gnu_cxx::hash<short>()(42) == 42);
    assert(__gnu_cxx::hash<unsigned short>()(42) == 42);
    assert(__gnu_cxx::hash<int>()(42) == 42);
    assert(__gnu_cxx::hash<unsigned int>()(42) == 42);
    assert(__gnu_cxx::hash<long>()(42) == 42);
    assert(__gnu_cxx::hash<unsigned long>()(42) == 42);
}