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src/misc.c

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	static int verbosity_level = 0;	static int verbosity_level = 0;

		#ifndef HAVE_EXPLICIT_MEMSET
	/* Prevent compiler from optimizing away the call to memset by accessing	/* Prevent compiler from optimizing away the call to memset by accessing
	memset through volatile pointer. */	memset through volatile pointer. */
	static void (volatile memset_ptr)(void , int, size_t) = (void )memset;	static void (volatile memset_ptr)(void , int, size_t) = (void )memset;
		#endif

	static void (fatal_error_handler)(void,int, const char*) = NULL;	static void (fatal_error_handler)(void,int, const char*) = NULL;
	static void *fatal_error_handler_value = 0;	static void *fatal_error_handler_value = 0;
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	/* Note: This function is called from wipememory/wipememory2 only if LEN	/* Note: This function is called from wipememory/wipememory2 only if LEN
	is large or unknown at compile time. New wipe function alternatives	is large or unknown at compile time. New wipe function alternatives
	need to be checked before adding to this function. New implementations	need to be checked before adding to this function. New implementations
	need to be faster than wipememory/wipememory2 macros in 'misc.h'.	need to be faster than wipememory/wipememory2 macros in 'g10lib.h'.

	Following implementations were found to have suboptimal performance:	Following implementations were found to have suboptimal performance:

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	*/	*/
	#ifdef HAVE_EXPLICIT_BZERO	#ifdef HAVE_EXPLICIT_BZERO
	explicit_bzero (ptr, len);	explicit_bzero (ptr, len);
		#elif defined(HAVE_EXPLICIT_MEMSET)
		explicit_memset (ptr, 0, len);
	#else	#else
	memset_ptr (ptr, 0, len);	memset_ptr (ptr, 0, len);
	#endif	#endif
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	void	void
	_gcry_fast_wipememory2 (void *ptr, int set, size_t len)	_gcry_fast_wipememory2 (void *ptr, int set, size_t len)
	{	{
		#ifdef HAVE_EXPLICIT_MEMSET
		explicit_memset (ptr, set, len);
		#else
	#ifdef HAVE_EXPLICIT_BZERO	#ifdef HAVE_EXPLICIT_BZERO
	if (set == 0)	if (set == 0)
	{	{
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	#endif	#endif

	memset_ptr (ptr, set, len);	memset_ptr (ptr, set, len);
		#endif
	}	}


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