db2050dff1
Merge from Widevine repo of http://go/wvgerrit/93404 This is the unit tests, reference code, and documentation for OEMCrypto v16.2. Backwards compatibility should work for a v15 OEMCrypto. Some review comments will be addressed in future CLs. Bug: 141247171 Test: Unit tests Test: Media GTS tests on bonito Change-Id: I9d427c07580e180c0a4cfdc4a68f538d351c0ddd
35 lines
926 B
C
35 lines
926 B
C
/* Copyright 2019 Google LLC. All rights reserved. This file and proprietary */
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/* source code may only be used and distributed under the Widevine Master */
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/* License Agreement. */
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#ifndef WIDEVINE_ODK_SRC_ODK_OVERFLOW_H_
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#define WIDEVINE_ODK_SRC_ODK_OVERFLOW_H_
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#include <stddef.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef __has_builtin
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# define __has_builtin(x) 0
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#endif
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#if (defined(__GNUC__) && __GNUC__ >= 5) || \
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__has_builtin(__builtin_add_overflow)
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# define odk_sub_overflow_u64 __builtin_sub_overflow
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# define odk_add_overflow_u64 __builtin_add_overflow
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# define odk_add_overflow_ux __builtin_add_overflow
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#else
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int odk_sub_overflow_u64(uint64_t a, uint64_t b, uint64_t* c);
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int odk_add_overflow_u64(uint64_t a, uint64_t b, uint64_t* c);
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int odk_add_overflow_ux(size_t a, size_t b, size_t* c);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* WIDEVINE_ODK_SRC_ODK_OVERFLOW_H_ */
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