mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 12:12:47 +01:00
434526729b
This is a roll forward of D102679. This patch simplifies the implementation of Sequence and makes it compatible with llvm::reverse. It exposes the reverse iterators through rbegin/rend which prevents a dangling reference in std::reverse_iterator::operator++(). Note: Compared to D102679, this patch introduces a `asSmallVector()` member function and fixes compilation issue with GCC 5. Differential Revision: https://reviews.llvm.org/D103948
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
//===- SequenceTest.cpp - Unit tests for a sequence abstraciton -----------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/ADT/Sequence.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
#include <list>
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
TEST(SequenceTest, Forward) {
|
|
int X = 0;
|
|
for (int I : seq(0, 10)) {
|
|
EXPECT_EQ(X, I);
|
|
++X;
|
|
}
|
|
EXPECT_EQ(10, X);
|
|
}
|
|
|
|
TEST(SequenceTest, Backward) {
|
|
int X = 9;
|
|
for (int I : reverse(seq(0, 10))) {
|
|
EXPECT_EQ(X, I);
|
|
--X;
|
|
}
|
|
EXPECT_EQ(-1, X);
|
|
}
|
|
|
|
TEST(SequenceTest, Distance) {
|
|
const auto Forward = seq(0, 10);
|
|
EXPECT_EQ(std::distance(Forward.begin(), Forward.end()), 10);
|
|
EXPECT_EQ(std::distance(Forward.rbegin(), Forward.rend()), 10);
|
|
}
|
|
|
|
TEST(SequenceTest, Dereference) {
|
|
const auto Forward = seq(0, 10).begin();
|
|
EXPECT_EQ(Forward[0], 0);
|
|
EXPECT_EQ(Forward[2], 2);
|
|
const auto Backward = seq(0, 10).rbegin();
|
|
EXPECT_EQ(Backward[0], 9);
|
|
EXPECT_EQ(Backward[2], 7);
|
|
}
|
|
|
|
} // anonymous namespace
|