#ifndef AWS_COMMON_PREDICATES_H #define AWS_COMMON_PREDICATES_H /* * Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. * A copy of the License is located at * * http://aws.amazon.com/apache2.0 * * or in the "license" file accompanying this file. This file is distributed * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either * express or implied. See the License for the specific language governing * permissions and limitations under the License. */ /** * Returns whether all bytes of the two byte arrays match. */ #if (AWS_DEEP_CHECKS == 1) # ifdef CBMC /* clang-format off */ # define AWS_BYTES_EQ(arr1, arr2, len) \ __CPROVER_forall { \ int i; \ (i >= 0 && i < len) ==> ((const uint8_t *)&arr1)[i] == ((const uint8_t *)&arr2)[i] \ } /* clang-format on */ # else # define AWS_BYTES_EQ(arr1, arr2, len) (memcmp(arr1, arr2, len) == 0) # endif /* CBMC */ #else # define AWS_BYTES_EQ(arr1, arr2, len) (1) #endif /* (AWS_DEEP_CHECKS == 1) */ #endif /* AWS_COMMON_PREDICATES_H */