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Cygwin: create separate bits/byteswap.h

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Match glibc behaviour to expose the public bswap_* macros only with an
explicity #include <byteswap.h>; #include'ing <endian.h> should not expose
them.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
This commit is contained in:
Yaakov Selkowitz
2017-02-08 17:01:34 -06:00
parent 0eeb4c1d32
commit e704ab2470
3 changed files with 51 additions and 37 deletions
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25
winsup/cygwin/include/byteswap.h
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@@ -9,33 +9,10 @@ details. */
#ifndef _BYTESWAP_H
#define _BYTESWAP_H
#ifdef __cplusplus
extern "C" {
#endif
static __inline unsigned short
__bswap_16 (unsigned short __x)
{
return (__x >> 8) | (__x << 8);
}
static __inline unsigned int
__bswap_32 (unsigned int __x)
{
return (__bswap_16 (__x & 0xffff) << 16) | (__bswap_16 (__x >> 16));
}
static __inline unsigned long long
__bswap_64 (unsigned long long __x)
{
return (((unsigned long long) __bswap_32 (__x & 0xffffffffull)) << 32) | (__bswap_32 (__x >> 32));
}
#include <bits/byteswap.h>
#define bswap_16(x) __bswap_16(x)
#define bswap_32(x) __bswap_32(x)
#define bswap_64(x) __bswap_64(x)
#ifdef __cplusplus
}
#endif
#endif /* _BYTESWAP_H */