1 /**************************************************************************
2 *
3 * Copyright © 2016 Intel Corporation
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #ifndef U_BITCAST_H_
29 #define U_BITCAST_H_
30
31 #include <string.h>
32 #include <stdint.h>
33
34 #include "c99_compat.h"
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39
40 static inline uint32_t
u_bitcast_f2u(float f)41 u_bitcast_f2u(float f)
42 {
43 unsigned u;
44 memcpy(&u, &f, sizeof(u));
45 return u;
46 }
47
48 static inline uint64_t
u_bitcast_d2u(double d)49 u_bitcast_d2u(double d)
50 {
51 uint64_t u;
52 memcpy(&u, &d, sizeof(u));
53 return u;
54 }
55
56 static inline float
u_bitcast_u2f(uint32_t u)57 u_bitcast_u2f(uint32_t u)
58 {
59 float f;
60 memcpy(&f, &u, sizeof(f));
61 return f;
62 }
63
64 static inline double
u_bitcast_u2d(uint64_t u)65 u_bitcast_u2d(uint64_t u)
66 {
67 double d;
68 memcpy(&d, &u, sizeof(d));
69 return d;
70 }
71
72 #ifdef __cplusplus
73 }
74 #endif
75
76 #endif /* U_BITCAST_H_ */
77