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gnupg/jnlib/mischelp.h
Werner Koch c0c2c58054 Finished the bulk of changes for gnupg 1.9. This included switching
to libgcrypt functions, using shared error codes from libgpg-error,
replacing the old functions we used to have in ../util by those in
../jnlib and ../common, renaming the malloc functions and a couple of
types.  Note, that not all changes are listed below becuause they are
too similar and done at far too many places.  As of today the code
builds using the current libgcrypt from CVS but it is very unlikely
that it actually works.
2003-06-18 19:56:13 +00:00

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1.8 KiB
C

/* mischelp.h
* Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG 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 2 of the License, or
* (at your option) any later version.
*
* GnuPG 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifndef LIBJNLIB_MISCHELP_H
#define LIBJNLIB_MISCHHELP_H
#define DIM(v) (sizeof(v)/sizeof((v)[0]))
#define DIMof(type,member) DIM(((type *)0)->member)
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5 )
# define JNLIB_GCC_M_FUNCTION 1
# define JNLIB_GCC_A_NR __attribute__ ((noreturn))
# define JNLIB_GCC_A_PRINTF( f, a ) __attribute__ ((format (printf,f,a)))
# define JNLIB_GCC_A_NR_PRINTF( f, a ) \
__attribute__ ((noreturn, format (printf,f,a)))
#else
# define JNLIB_GCC_A_NR
# define JNLIB_GCC_A_PRINTF( f, a )
# define JNLIB_GCC_A_NR_PRINTF( f, a )
#endif
/* To avoid that a compiler optimizes certain memset calls away, these
macros may be used instead. */
#define wipememory2(_ptr,_set,_len) do { \
volatile char *_vptr=(volatile char *)(_ptr); \
size_t _vlen=(_len); \
while(_vlen) { *_vptr=(_set); _vptr++; _vlen--; } \
} while(0)
#define wipememory(_ptr,_len) wipememory2(_ptr,0,_len)
#endif /*LIBJNLIB_MISCHELP_H*/