/usr/include/winpr2/winpr/intrin.h is in libwinpr2-dev 2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | /**
* WinPR: Windows Portable Runtime
* C Run-Time Library Routines
*
* Copyright 2015 Thincast Technologies GmbH
* Copyright 2015 Bernhard Miklautz <bernhard.miklautz@thincast.com>
*
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef WINPR_INTRIN_H
#define WINPR_INTRIN_H
#ifndef _WIN32
/**
* __lzcnt16, __lzcnt, __lzcnt64:
* http://msdn.microsoft.com/en-us/library/bb384809/
*
* Beware: the result of __builtin_clz(0) is undefined
*/
#if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 2))
static INLINE UINT32 __lzcnt(UINT32 _val32) {
return ((UINT32) __builtin_clz(_val32));
}
static INLINE UINT16 __lzcnt16(UINT16 _val16) {
return ((UINT16) (__builtin_clz((UINT32) _val16) - 16));
}
#else /* (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 2) */
static INLINE UINT32 __lzcnt(UINT32 x)
{
unsigned y;
int n = 32;
y = x >> 16; if (y != 0) { n = n - 16; x = y; }
y = x >> 8; if (y != 0) { n = n - 8; x = y; }
y = x >> 4; if (y != 0) { n = n - 4; x = y; }
y = x >> 2; if (y != 0) { n = n - 2; x = y; }
y = x >> 1; if (y != 0) return n - 2;
return n - x;
}
static INLINE UINT16 __lzcnt16(UINT16 x)
{
return ((UINT16) __lzcnt((UINT32) x));
}
#endif /* (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 2) */
#endif /* _WIN32 */
#endif /* WINPR_INTRIN_H */
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