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Side by Side Diff: webrtc/rtc_base/safe_minmax.h

Issue 2877023002: Move webrtc/{base => rtc_base} (Closed)
Patch Set: update presubmit.py and DEPS include rules Created 3 years, 5 months ago
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1 /* 1 /*
2 * Copyright 2017 The WebRTC Project Authors. All rights reserved. 2 * Copyright 2017 The WebRTC Project Authors. All rights reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source 5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
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66 // 66 //
67 // All three functions allow callers to explicitly specify the return type as a 67 // All three functions allow callers to explicitly specify the return type as a
68 // template parameter, overriding the default return type. E.g. 68 // template parameter, overriding the default return type. E.g.
69 // 69 //
70 // rtc::SafeMin<int>(x, y) // returns an int 70 // rtc::SafeMin<int>(x, y) // returns an int
71 // 71 //
72 // If the requested type is statically guaranteed to be able to represent the 72 // If the requested type is statically guaranteed to be able to represent the
73 // result, then everything's fine, and the return type is as requested. But if 73 // result, then everything's fine, and the return type is as requested. But if
74 // the requested type is too small, a static_assert is triggered. 74 // the requested type is too small, a static_assert is triggered.
75 75
76 #ifndef WEBRTC_BASE_SAFE_MINMAX_H_ 76 #ifndef WEBRTC_RTC_BASE_SAFE_MINMAX_H_
77 #define WEBRTC_BASE_SAFE_MINMAX_H_ 77 #define WEBRTC_RTC_BASE_SAFE_MINMAX_H_
78 78
79 #include <limits> 79 #include <limits>
80 #include <type_traits> 80 #include <type_traits>
81 81
82 #include "webrtc/base/checks.h" 82 #include "webrtc/base/checks.h"
83 #include "webrtc/base/safe_compare.h" 83 #include "webrtc/base/safe_compare.h"
84 #include "webrtc/base/type_traits.h" 84 #include "webrtc/base/type_traits.h"
85 85
86 namespace rtc { 86 namespace rtc {
87 87
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325 static_assert(IsIntlike<L>::value || std::is_floating_point<L>::value, 325 static_assert(IsIntlike<L>::value || std::is_floating_point<L>::value,
326 "The third argument must be integral or floating-point"); 326 "The third argument must be integral or floating-point");
327 RTC_DCHECK_LE(min, max); 327 RTC_DCHECK_LE(min, max);
328 return SafeLe(x, min) 328 return SafeLe(x, min)
329 ? static_cast<R2>(min) 329 ? static_cast<R2>(min)
330 : SafeGe(x, max) ? static_cast<R2>(max) : static_cast<R2>(x); 330 : SafeGe(x, max) ? static_cast<R2>(max) : static_cast<R2>(x);
331 } 331 }
332 332
333 } // namespace rtc 333 } // namespace rtc
334 334
335 #endif // WEBRTC_BASE_SAFE_MINMAX_H_ 335 #endif // WEBRTC_RTC_BASE_SAFE_MINMAX_H_
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