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Side by Side Diff: src/base/safe_conversions_impl.h

Issue 430503007: Rename ASSERT* to DCHECK*. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: REBASE and fixes Created 6 years, 4 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 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 // Slightly adapted for inclusion in V8. 5 // Slightly adapted for inclusion in V8.
6 // Copyright 2014 the V8 project authors. All rights reserved. 6 // Copyright 2014 the V8 project authors. All rights reserved.
7 7
8 #ifndef V8_BASE_SAFE_CONVERSIONS_IMPL_H_ 8 #ifndef V8_BASE_SAFE_CONVERSIONS_IMPL_H_
9 #define V8_BASE_SAFE_CONVERSIONS_IMPL_H_ 9 #define V8_BASE_SAFE_CONVERSIONS_IMPL_H_
10 10
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92 92
93 enum RangeConstraint { 93 enum RangeConstraint {
94 RANGE_VALID = 0x0, // Value can be represented by the destination type. 94 RANGE_VALID = 0x0, // Value can be represented by the destination type.
95 RANGE_UNDERFLOW = 0x1, // Value would overflow. 95 RANGE_UNDERFLOW = 0x1, // Value would overflow.
96 RANGE_OVERFLOW = 0x2, // Value would underflow. 96 RANGE_OVERFLOW = 0x2, // Value would underflow.
97 RANGE_INVALID = RANGE_UNDERFLOW | RANGE_OVERFLOW // Invalid (i.e. NaN). 97 RANGE_INVALID = RANGE_UNDERFLOW | RANGE_OVERFLOW // Invalid (i.e. NaN).
98 }; 98 };
99 99
100 // Helper function for coercing an int back to a RangeContraint. 100 // Helper function for coercing an int back to a RangeContraint.
101 inline RangeConstraint GetRangeConstraint(int integer_range_constraint) { 101 inline RangeConstraint GetRangeConstraint(int integer_range_constraint) {
102 ASSERT(integer_range_constraint >= RANGE_VALID && 102 DCHECK(integer_range_constraint >= RANGE_VALID &&
103 integer_range_constraint <= RANGE_INVALID); 103 integer_range_constraint <= RANGE_INVALID);
104 return static_cast<RangeConstraint>(integer_range_constraint); 104 return static_cast<RangeConstraint>(integer_range_constraint);
105 } 105 }
106 106
107 // This function creates a RangeConstraint from an upper and lower bound 107 // This function creates a RangeConstraint from an upper and lower bound
108 // check by taking advantage of the fact that only NaN can be out of range in 108 // check by taking advantage of the fact that only NaN can be out of range in
109 // both directions at once. 109 // both directions at once.
110 inline RangeConstraint GetRangeConstraint(bool is_in_upper_bound, 110 inline RangeConstraint GetRangeConstraint(bool is_in_upper_bound,
111 bool is_in_lower_bound) { 111 bool is_in_lower_bound) {
112 return GetRangeConstraint((is_in_upper_bound ? 0 : RANGE_OVERFLOW) | 112 return GetRangeConstraint((is_in_upper_bound ? 0 : RANGE_OVERFLOW) |
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211 STATIC_ASSERT(std::numeric_limits<Src>::is_specialized); 211 STATIC_ASSERT(std::numeric_limits<Src>::is_specialized);
212 STATIC_ASSERT(std::numeric_limits<Dst>::is_specialized); 212 STATIC_ASSERT(std::numeric_limits<Dst>::is_specialized);
213 return DstRangeRelationToSrcRangeImpl<Dst, Src>::Check(value); 213 return DstRangeRelationToSrcRangeImpl<Dst, Src>::Check(value);
214 } 214 }
215 215
216 } // namespace internal 216 } // namespace internal
217 } // namespace base 217 } // namespace base
218 } // namespace v8 218 } // namespace v8
219 219
220 #endif // V8_BASE_SAFE_CONVERSIONS_IMPL_H_ 220 #endif // V8_BASE_SAFE_CONVERSIONS_IMPL_H_
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