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authorJohn Abd-El-Malek <jam@chromium.org>2014-06-23 15:24:28 -0700
committerJohn Abd-El-Malek <jam@chromium.org>2014-06-23 15:24:28 -0700
commit6c673585ed6bcb9e330ea5ab716f496c5d5f37b4 (patch)
tree0fd37d72e416fd2edb94373d18e08d6b8a33a303 /third_party/numerics/safe_conversions.h
parent617089a3c1409be11fa130abb78dbd00b9e32d06 (diff)
downloadpdfium-6c673585ed6bcb9e330ea5ab716f496c5d5f37b4.tar.xz
Revert "Import Chromium base/numerics to resolve integer overflow."
This reverts commit d9713f05fdcecab8428d39034c6b84cd0bbd2920. This is breaking compile.
Diffstat (limited to 'third_party/numerics/safe_conversions.h')
-rw-r--r--third_party/numerics/safe_conversions.h64
1 files changed, 0 insertions, 64 deletions
diff --git a/third_party/numerics/safe_conversions.h b/third_party/numerics/safe_conversions.h
deleted file mode 100644
index 681dc0a9cc..0000000000
--- a/third_party/numerics/safe_conversions.h
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_SAFE_CONVERSIONS_H_
-#define BASE_SAFE_CONVERSIONS_H_
-
-#include <limits>
-
-#include "../logging.h"
-#include "safe_conversions_impl.h"
-
-namespace base {
-
-// Convenience function that returns true if the supplied value is in range
-// for the destination type.
-template <typename Dst, typename Src>
-inline bool IsValueInRangeForNumericType(Src value) {
- return internal::DstRangeRelationToSrcRange<Dst>(value) ==
- internal::RANGE_VALID;
-}
-
-// checked_cast<> is analogous to static_cast<> for numeric types,
-// except that it CHECKs that the specified numeric conversion will not
-// overflow or underflow. NaN source will always trigger a CHECK.
-template <typename Dst, typename Src>
-inline Dst checked_cast(Src value) {
- CHECK(IsValueInRangeForNumericType<Dst>(value));
- return static_cast<Dst>(value);
-}
-
-// saturated_cast<> is analogous to static_cast<> for numeric types, except
-// that the specified numeric conversion will saturate rather than overflow or
-// underflow. NaN assignment to an integral will trigger a CHECK condition.
-template <typename Dst, typename Src>
-inline Dst saturated_cast(Src value) {
- // Optimization for floating point values, which already saturate.
- if (std::numeric_limits<Dst>::is_iec559)
- return static_cast<Dst>(value);
-
- switch (internal::DstRangeRelationToSrcRange<Dst>(value)) {
- case internal::RANGE_VALID:
- return static_cast<Dst>(value);
-
- case internal::RANGE_UNDERFLOW:
- return std::numeric_limits<Dst>::min();
-
- case internal::RANGE_OVERFLOW:
- return std::numeric_limits<Dst>::max();
-
- // Should fail only on attempting to assign NaN to a saturated integer.
- case internal::RANGE_INVALID:
- CHECK(false);
- return std::numeric_limits<Dst>::max();
- }
-
- NOTREACHED();
- return static_cast<Dst>(value);
-}
-
-} // namespace base
-
-#endif // BASE_SAFE_CONVERSIONS_H_
-