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Issue 141113003: Refactor base/safe_numerics.h (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 6 years, 11 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "base/safe_numerics.h" 5 #include "base/numerics/safe_conversions.h"
6 6
7 #include <stdint.h> 7 #include <stdint.h>
8 8
9 #include <limits> 9 #include <limits>
10 10
11 #include "base/compiler_specific.h" 11 #include "base/compiler_specific.h"
12 #include "testing/gtest/include/gtest/gtest.h" 12 #include "testing/gtest/include/gtest/gtest.h"
13 13
14 namespace base { 14 namespace base {
15 namespace internal { 15 namespace internal {
(...skipping 235 matching lines...) Expand 10 before | Expand all | Expand 10 after
251 #pragma warning(disable : 4756) 251 #pragma warning(disable : 4756)
252 #endif 252 #endif
253 253
254 int small_positive = 1; 254 int small_positive = 1;
255 int small_negative = -1; 255 int small_negative = -1;
256 double double_small = 1.0; 256 double double_small = 1.0;
257 double double_large = std::numeric_limits<double>::max(); 257 double double_large = std::numeric_limits<double>::max();
258 double double_infinity = std::numeric_limits<float>::infinity(); 258 double double_infinity = std::numeric_limits<float>::infinity();
259 259
260 // Just test that the cast compiles, since the other tests cover logic. 260 // Just test that the cast compiles, since the other tests cover logic.
261 EXPECT_EQ(0, base::checked_numeric_cast<int>(static_cast<size_t>(0))); 261 EXPECT_EQ(0, base::checked_cast<int>(static_cast<size_t>(0)));
262 262
263 // Test various saturation corner cases. 263 // Test various saturation corner cases.
264 EXPECT_EQ(saturated_cast<int>(small_negative), 264 EXPECT_EQ(saturated_cast<int>(small_negative),
265 static_cast<int>(small_negative)); 265 static_cast<int>(small_negative));
266 EXPECT_EQ(saturated_cast<int>(small_positive), 266 EXPECT_EQ(saturated_cast<int>(small_positive),
267 static_cast<int>(small_positive)); 267 static_cast<int>(small_positive));
268 EXPECT_EQ(saturated_cast<unsigned>(small_negative), 268 EXPECT_EQ(saturated_cast<unsigned>(small_negative),
269 static_cast<unsigned>(0)); 269 static_cast<unsigned>(0));
270 EXPECT_EQ(saturated_cast<int>(double_small), 270 EXPECT_EQ(saturated_cast<int>(double_small),
271 static_cast<int>(double_small)); 271 static_cast<int>(double_small));
272 EXPECT_EQ(saturated_cast<int>(double_large), 272 EXPECT_EQ(saturated_cast<int>(double_large),
273 std::numeric_limits<int>::max()); 273 std::numeric_limits<int>::max());
274 EXPECT_EQ(saturated_cast<float>(double_large), double_infinity); 274 EXPECT_EQ(saturated_cast<float>(double_large), double_infinity);
275 EXPECT_EQ(saturated_cast<float>(-double_large), -double_infinity); 275 EXPECT_EQ(saturated_cast<float>(-double_large), -double_infinity);
276 } 276 }
277 277
278 } // namespace internal 278 } // namespace internal
279 } // namespace base 279 } // namespace base
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