id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
11590,cpp_int initialization inefficient,Manfred Weis <manfredweis@…>,John Maddock,"I tried to create an cpp_int with about 10 million digits from a hex string ""0x1....1""; it literally take ages.
The reasons seems to be the repeated shift and add conversion from the characters; while that is inevitable for decimal digits, a hex encoded string would allow to directly determine the final position and shift in the corresponding limb. 

TODO: check supplied string for valid hex encoding, allocate enough zero-initialized limbs and then directly set the value of the corresponding limb.

A further improvement would be to supply a conversion from a sequence of values that are stored in some linear container.",Patches,closed,To Be Determined,multiprecision,Boost 1.57.0,Optimization,fixed,,