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TypePunning.h
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1 /*
2  * Copyright 2017 MapD Technologies, Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef QUERYENGINE_TYPEPUNNING_H
18 #define QUERYENGINE_TYPEPUNNING_H
19 
20 #include "../Shared/funcannotations.h"
21 
22 // Mark ptr as safe for type-punning operations. We need it whenever we want to
23 // interpret a sequence of bytes as float / double through a reinterpret_cast.
24 
25 template <class T>
26  FORCE_INLINE T __attribute__((__may_alias__)) * may_alias_ptr(T* ptr) {
27  return ptr;
28 }
29 
30 #endif // QUERYENGINE_TYPEPUNNING_H
FORCE_INLINE T __attribute__((__may_alias__)) *may_alias_ptr(T *ptr)
Definition: TypePunning.h:26
#define FORCE_INLINE