Last change
on this file since 444 was
444,
checked in by satin@…, 6 years ago
|
add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
|
File size:
791 bytes
|
Line | |
---|
1 | /* Copyright (c) 2017 SiFive Inc. All rights reserved. |
---|
2 | |
---|
3 | This copyrighted material is made available to anyone wishing to use, |
---|
4 | modify, copy, or redistribute it subject to the terms and conditions |
---|
5 | of the FreeBSD License. This program is distributed in the hope that |
---|
6 | it will be useful, but WITHOUT ANY WARRANTY expressed or implied, |
---|
7 | including the implied warranties of MERCHANTABILITY or FITNESS FOR |
---|
8 | A PARTICULAR PURPOSE. A copy of this license is available at |
---|
9 | http://www.opensource.org/licenses. |
---|
10 | */ |
---|
11 | |
---|
12 | #ifndef _SYS_STRING_H |
---|
13 | #define _SYS_STRING_H |
---|
14 | |
---|
15 | static __inline unsigned long __libc_detect_null(unsigned long w) |
---|
16 | { |
---|
17 | unsigned long mask = 0x7f7f7f7f; |
---|
18 | if (sizeof (long) == 8) |
---|
19 | mask = ((mask << 16) << 16) | mask; |
---|
20 | return ~(((w & mask) + mask) | w | mask); |
---|
21 | } |
---|
22 | |
---|
23 | #endif |
---|
Note: See
TracBrowser
for help on using the repository browser.