In mp_init_copy(), mp_init() is used to assign the memory with default block size, mp_copy() is used to grow the target mp_int size if it is required and copy the content. My suggestion is to use mp_init_size() instead of mp_init() inside the mp_init_copy to assign required memory depending on the source mp_int size and then use mp_copy to copy the content. This will avoid the subsequent mp_grow() inside the mp_copy(). The associated issue number is 11 in GitHub.
		
			
				
	
	
		
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			809 B
		
	
	
	
		
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			33 lines
		
	
	
		
			809 B
		
	
	
	
		
			C
		
	
	
	
	
	
| #include <tommath.h>
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| #ifdef BN_MP_INIT_COPY_C
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| /* LibTomMath, multiple-precision integer library -- Tom St Denis
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|  *
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|  * LibTomMath is a library that provides multiple-precision
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|  * integer arithmetic as well as number theoretic functionality.
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|  *
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|  * The library was designed directly after the MPI library by
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|  * Michael Fromberger but has been written from scratch with
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|  * additional optimizations in place.
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|  *
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|  * The library is free for all purposes without any express
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|  * guarantee it works.
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|  *
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|  * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
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|  */
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| 
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| /* creates "a" then copies b into it */
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| int mp_init_copy (mp_int * a, mp_int * b)
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| {
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|   int     res;
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| 
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|   if ((res = mp_init_size (a, b->used)) != MP_OKAY) {
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|     return res;
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|   }
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|   return mp_copy (b, a);
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| }
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| #endif
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| 
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| /* $Source$ */
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| /* $Revision$ */
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| /* $Date$ */
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