The C and C++ Include Header Files

/usr/include/linux/byteorder/little_endian.h


$ cat -n /usr/include/linux/byteorder/little_endian.h

     1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
     2	#ifndef _LINUX_BYTEORDER_LITTLE_ENDIAN_H
     3	#define _LINUX_BYTEORDER_LITTLE_ENDIAN_H
     4	
     5	#ifndef __LITTLE_ENDIAN
     6	#define __LITTLE_ENDIAN 1234
     7	#endif
     8	#ifndef __LITTLE_ENDIAN_BITFIELD
     9	#define __LITTLE_ENDIAN_BITFIELD
    10	#endif
    11	
    12	#include <linux/stddef.h>
    13	#include <linux/types.h>
    14	#include <linux/swab.h>
    15	
    16	#define __constant_htonl(x) ((__be32)___constant_swab32((x)))
    17	#define __constant_ntohl(x) ___constant_swab32((__be32)(x))
    18	#define __constant_htons(x) ((__be16)___constant_swab16((x)))
    19	#define __constant_ntohs(x) ___constant_swab16((__be16)(x))
    20	#define __constant_cpu_to_le64(x) ((__le64)(__u64)(x))
    21	#define __constant_le64_to_cpu(x) ((__u64)(__le64)(x))
    22	#define __constant_cpu_to_le32(x) ((__le32)(__u32)(x))
    23	#define __constant_le32_to_cpu(x) ((__u32)(__le32)(x))
    24	#define __constant_cpu_to_le16(x) ((__le16)(__u16)(x))
    25	#define __constant_le16_to_cpu(x) ((__u16)(__le16)(x))
    26	#define __constant_cpu_to_be64(x) ((__be64)___constant_swab64((x)))
    27	#define __constant_be64_to_cpu(x) ___constant_swab64((__u64)(__be64)(x))
    28	#define __constant_cpu_to_be32(x) ((__be32)___constant_swab32((x)))
    29	#define __constant_be32_to_cpu(x) ___constant_swab32((__u32)(__be32)(x))
    30	#define __constant_cpu_to_be16(x) ((__be16)___constant_swab16((x)))
    31	#define __constant_be16_to_cpu(x) ___constant_swab16((__u16)(__be16)(x))
    32	#define __cpu_to_le64(x) ((__le64)(__u64)(x))
    33	#define __le64_to_cpu(x) ((__u64)(__le64)(x))
    34	#define __cpu_to_le32(x) ((__le32)(__u32)(x))
    35	#define __le32_to_cpu(x) ((__u32)(__le32)(x))
    36	#define __cpu_to_le16(x) ((__le16)(__u16)(x))
    37	#define __le16_to_cpu(x) ((__u16)(__le16)(x))
    38	#define __cpu_to_be64(x) ((__be64)__swab64((x)))
    39	#define __be64_to_cpu(x) __swab64((__u64)(__be64)(x))
    40	#define __cpu_to_be32(x) ((__be32)__swab32((x)))
    41	#define __be32_to_cpu(x) __swab32((__u32)(__be32)(x))
    42	#define __cpu_to_be16(x) ((__be16)__swab16((x)))
    43	#define __be16_to_cpu(x) __swab16((__u16)(__be16)(x))
    44	
    45	static __always_inline __le64 __cpu_to_le64p(const __u64 *p)
    46	{
    47		return (__le64)*p;
    48	}
    49	static __always_inline __u64 __le64_to_cpup(const __le64 *p)
    50	{
    51		return (__u64)*p;
    52	}
    53	static __always_inline __le32 __cpu_to_le32p(const __u32 *p)
    54	{
    55		return (__le32)*p;
    56	}
    57	static __always_inline __u32 __le32_to_cpup(const __le32 *p)
    58	{
    59		return (__u32)*p;
    60	}
    61	static __always_inline __le16 __cpu_to_le16p(const __u16 *p)
    62	{
    63		return (__le16)*p;
    64	}
    65	static __always_inline __u16 __le16_to_cpup(const __le16 *p)
    66	{
    67		return (__u16)*p;
    68	}
    69	static __always_inline __be64 __cpu_to_be64p(const __u64 *p)
    70	{
    71		return (__be64)__swab64p(p);
    72	}
    73	static __always_inline __u64 __be64_to_cpup(const __be64 *p)
    74	{
    75		return __swab64p((__u64 *)p);
    76	}
    77	static __always_inline __be32 __cpu_to_be32p(const __u32 *p)
    78	{
    79		return (__be32)__swab32p(p);
    80	}
    81	static __always_inline __u32 __be32_to_cpup(const __be32 *p)
    82	{
    83		return __swab32p((__u32 *)p);
    84	}
    85	static __always_inline __be16 __cpu_to_be16p(const __u16 *p)
    86	{
    87		return (__be16)__swab16p(p);
    88	}
    89	static __always_inline __u16 __be16_to_cpup(const __be16 *p)
    90	{
    91		return __swab16p((__u16 *)p);
    92	}
    93	#define __cpu_to_le64s(x) do { (void)(x); } while (0)
    94	#define __le64_to_cpus(x) do { (void)(x); } while (0)
    95	#define __cpu_to_le32s(x) do { (void)(x); } while (0)
    96	#define __le32_to_cpus(x) do { (void)(x); } while (0)
    97	#define __cpu_to_le16s(x) do { (void)(x); } while (0)
    98	#define __le16_to_cpus(x) do { (void)(x); } while (0)
    99	#define __cpu_to_be64s(x) __swab64s((x))
   100	#define __be64_to_cpus(x) __swab64s((x))
   101	#define __cpu_to_be32s(x) __swab32s((x))
   102	#define __be32_to_cpus(x) __swab32s((x))
   103	#define __cpu_to_be16s(x) __swab16s((x))
   104	#define __be16_to_cpus(x) __swab16s((x))
   105	
   106	
   107	#endif /* _LINUX_BYTEORDER_LITTLE_ENDIAN_H */