e31afc9da08f5163ee0f0f7157c70a9b544e3f9e
1 // SPDX-License-Identifier: MIT
4 * Copyright (C) 2012,2022 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 * This header defines the following endian macros based on the current
9 * platform endian headers:
11 * BYTE_ORDER this macro shall have a value equal to one
12 * of the *_ENDIAN macros in this header.
13 * FLOAT_WORD_ORDER this macro shall have a value equal to one
14 * of the *_ENDIAN macros in this header.
15 * LITTLE_ENDIAN if BYTE_ORDER == LITTLE_ENDIAN, the host
16 * byte order is from least significant to
18 * BIG_ENDIAN if BYTE_ORDER == BIG_ENDIAN, the host byte
19 * order is from most significant to least
22 * Direct byte swapping interfaces:
24 * uint16_t bswap_16(uint16_t x); (* swap bytes 16-bit word *)
25 * uint32_t bswap_32(uint32_t x); (* swap bytes 32-bit word *)
26 * uint64_t bswap_64(uint32_t x); (* swap bytes 64-bit word *)
29 #ifndef _TGIF_ENDIAN_H
30 #define _TGIF_ENDIAN_H
32 #include <tgif/macros.h>
35 #if (defined(__linux__) || defined(__CYGWIN__))
39 #define tgif_bswap_16(x) bswap_16(x)
40 #define tgif_bswap_32(x) bswap_32(x)
41 #define tgif_bswap_64(x) bswap_64(x)
43 #define TGIF_BYTE_ORDER __BYTE_ORDER
44 #define TGIF_LITTLE_ENDIAN __LITTLE_ENDIAN
45 #define TGIF_BIG_ENDIAN __BIG_ENDIAN
47 #ifdef __FLOAT_WORD_ORDER
48 #define TGIF_FLOAT_WORD_ORDER __FLOAT_WORD_ORDER
49 #else /* __FLOAT_WORD_ORDER */
50 #define TGIF_FLOAT_WORD_ORDER __BYTE_ORDER
51 #endif /* __FLOAT_WORD_ORDER */
53 #elif defined(__FreeBSD__)
55 #include <sys/endian.h>
57 #define tgif_bswap_16(x) bswap16(x)
58 #define tgif_bswap_32(x) bswap32(x)
59 #define tgif_bswap_64(x) bswap64(x)
61 #define TGIF_BYTE_ORDER BYTE_ORDER
62 #define TGIF_LITTLE_ENDIAN LITTLE_ENDIAN
63 #define TGIF_BIG_ENDIAN BIG_ENDIAN
64 #define TGIF_FLOAT_WORD_ORDER BYTE_ORDER
67 #error "Please add support for your OS."
74 #ifdef __HAVE_FLOAT128
76 void tgif_bswap_128p(char *p
)
80 for (i
= 0; i
< 8; i
++)
89 #if TGIF_BITS_PER_LONG == 64
90 # define tgif_bswap_pointer(x) tgif_bswap_64(x)
92 # define tgif_bswap_pointer(x) tgif_bswap_32(x)
95 #endif /* _TGIF_ENDIAN_H */
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