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llvm-mirror/unittests/Support/ThreadLocalTest.cpp
David Majnemer 5756ece9cb ThreadLocal: Return a mutable pointer if templated with a non-const type
It makes more sense for ThreadLocal<const T>::get to return a const T*
and ThreadLocal<T>::get to return a T*.

llvm-svn: 224225
2014-12-15 01:04:45 +00:00

58 lines
1.2 KiB
C++

//===- llvm/unittest/Support/ThreadLocalTest.cpp - ThreadLocal tests ------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/ThreadLocal.h"
#include "gtest/gtest.h"
#include <type_traits>
using namespace llvm;
using namespace sys;
namespace {
class ThreadLocalTest : public ::testing::Test {
};
struct S {
int i;
};
TEST_F(ThreadLocalTest, Basics) {
ThreadLocal<const S> x;
static_assert(
std::is_const<std::remove_pointer<decltype(x.get())>::type>::value,
"ThreadLocal::get didn't return a pointer to const object");
EXPECT_EQ(nullptr, x.get());
S s;
x.set(&s);
EXPECT_EQ(&s, x.get());
x.erase();
EXPECT_EQ(nullptr, x.get());
ThreadLocal<S> y;
static_assert(
!std::is_const<std::remove_pointer<decltype(y.get())>::type>::value,
"ThreadLocal::get returned a pointer to const object");
EXPECT_EQ(nullptr, y.get());
y.set(&s);
EXPECT_EQ(&s, y.get());
y.erase();
EXPECT_EQ(nullptr, y.get());
}
}