cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / x86_64-linux-gnu / bits / select.h

diff --git a/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/select.h b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/select.h
new file mode 100644 (file)
index 0000000..2c0a2b5
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/select.h
@@ -0,0 +1,63 @@
+/* Copyright (C) 1997-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _SYS_SELECT_H
+# error "Never use <bits/select.h> directly; include <sys/select.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+
+#if defined __GNUC__ && __GNUC__ >= 2
+
+# if __WORDSIZE == 64
+#  define __FD_ZERO_STOS "stosq"
+# else
+#  define __FD_ZERO_STOS "stosl"
+# endif
+
+# define __FD_ZERO(fdsp) \
+  do {                                                                       \
+    int __d0, __d1;                                                          \
+    __asm__ __volatile__ ("cld; rep; " __FD_ZERO_STOS                        \
+                         : "=c" (__d0), "=D" (__d1)                          \
+                         : "a" (0), "0" (sizeof (fd_set)                     \
+                                         / sizeof (__fd_mask)),              \
+                           "1" (&__FDS_BITS (fdsp)[0])                       \
+                         : "memory");                                        \
+  } while (0)
+
+#else  /* ! GNU CC */
+
+/* We don't use `memset' because this would require a prototype and
+   the array isn't too big.  */
+# define __FD_ZERO(set)  \
+  do {                                                                       \
+    unsigned int __i;                                                        \
+    fd_set *__arr = (set);                                                   \
+    for (__i = 0; __i < sizeof (fd_set) / sizeof (__fd_mask); ++__i)         \
+      __FDS_BITS (__arr)[__i] = 0;                                           \
+  } while (0)
+
+#endif /* GNU CC */
+
+#define __FD_SET(d, set) \
+  ((void) (__FDS_BITS (set)[__FD_ELT (d)] |= __FD_MASK (d)))
+#define __FD_CLR(d, set) \
+  ((void) (__FDS_BITS (set)[__FD_ELT (d)] &= ~__FD_MASK (d)))
+#define __FD_ISSET(d, set) \
+  ((__FDS_BITS (set)[__FD_ELT (d)] & __FD_MASK (d)) != 0)