mirror of
https://github.com/llvm-mirror/libcxx.git
synced 2025-10-23 01:18:52 +08:00
Implement P0513R0 - "Poisoning the Hash"
Summary: Exactly what the title says. This patch also adds a `std::hash<nullptr_t>` specialization in C++17, but it was not added by this paper and I can't find the actual paper that adds it. See http://wg21.link/P0513R0 for more info. If there are no comments in the next couple of days I'll commit this Reviewers: mclow.lists, K-ballo, EricWF Reviewed By: EricWF Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D28938 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@292684 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
31
test/std/strings/basic.string.hash/enabled_hashes.pass.cpp
Normal file
31
test/std/strings/basic.string.hash/enabled_hashes.pass.cpp
Normal file
@@ -0,0 +1,31 @@
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
// UNSUPPORTED: c++98, c++03
|
||||
|
||||
// <string>
|
||||
|
||||
// Test that <string> provides all of the arithmetic, enum, and pointer
|
||||
// hash specializations.
|
||||
|
||||
#include <string>
|
||||
|
||||
#include "poisoned_hash_helper.hpp"
|
||||
|
||||
int main() {
|
||||
test_library_hash_specializations_available();
|
||||
{
|
||||
test_hash_enabled_for_type<std::string>();
|
||||
test_hash_enabled_for_type<std::wstring>();
|
||||
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
|
||||
test_hash_enabled_for_type<std::u16string>();
|
||||
test_hash_enabled_for_type<std::u32string>();
|
||||
#endif
|
||||
}
|
||||
}
|
Reference in New Issue
Block a user