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author | Nikos Mavrogiannopoulos <nmav@gnutls.org> | 2011-04-13 19:58:08 +0200 |
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committer | Nikos Mavrogiannopoulos <nmav@gnutls.org> | 2011-04-13 19:58:08 +0200 |
commit | 1726cb4569daef037797d9e85e18a09a38024dd4 (patch) | |
tree | 729e3ad2c7aa015572a0c29580f20dc48313bb77 /gl/byteswap.in.h | |
parent | ee8c4c16f7dce5b430b9d61b91a5a91e3d8b4ea2 (diff) | |
download | gnutls-1726cb4569daef037797d9e85e18a09a38024dd4.tar.gz |
Added missing gnulib files
Diffstat (limited to 'gl/byteswap.in.h')
-rw-r--r-- | gl/byteswap.in.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/gl/byteswap.in.h b/gl/byteswap.in.h new file mode 100644 index 0000000000..6114916019 --- /dev/null +++ b/gl/byteswap.in.h @@ -0,0 +1,44 @@ +/* byteswap.h - Byte swapping + Copyright (C) 2005, 2007, 2009-2011 Free Software Foundation, Inc. + Written by Oskar Liljeblad <oskar@osk.mine.nu>, 2005. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef _GL_BYTESWAP_H +#define _GL_BYTESWAP_H + +/* Given an unsigned 16-bit argument X, return the value corresponding to + X with reversed byte order. */ +#define bswap_16(x) ((((x) & 0x00FF) << 8) | \ + (((x) & 0xFF00) >> 8)) + +/* Given an unsigned 32-bit argument X, return the value corresponding to + X with reversed byte order. */ +#define bswap_32(x) ((((x) & 0x000000FF) << 24) | \ + (((x) & 0x0000FF00) << 8) | \ + (((x) & 0x00FF0000) >> 8) | \ + (((x) & 0xFF000000) >> 24)) + +/* Given an unsigned 64-bit argument X, return the value corresponding to + X with reversed byte order. */ +#define bswap_64(x) ((((x) & 0x00000000000000FFULL) << 56) | \ + (((x) & 0x000000000000FF00ULL) << 40) | \ + (((x) & 0x0000000000FF0000ULL) << 24) | \ + (((x) & 0x00000000FF000000ULL) << 8) | \ + (((x) & 0x000000FF00000000ULL) >> 8) | \ + (((x) & 0x0000FF0000000000ULL) >> 24) | \ + (((x) & 0x00FF000000000000ULL) >> 40) | \ + (((x) & 0xFF00000000000000ULL) >> 56)) + +#endif /* _GL_BYTESWAP_H */ |