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15 Commits

Author SHA1 Message Date
Sam Cappleman-Lynes 5738141b7c Distinction for commutative scalar ops 2017-06-29 09:59:42 +01:00
Sam Cappleman-Lynes fd2f516a5d All variants of multiplying BigUint by BigDigit 
Allow the multiplication to occur with either operand order and with any
combination of owned and borrowed arguments.
 2017-06-29 09:56:15 +01:00
Sam Cappleman-Lynes e5ed503141 Implement all variants of adding BigDigit to BigUint 
Allow the addition to occur with either operand order, and with any combination
of owned and borrowed arguments.
 2017-06-29 08:41:46 +01:00
Sam Cappleman-Lynes 784d26bbf8 Scalar division of a BigUint by a BigDigit 
A BigUint can be divided by a BigDigit - this is one of several
operations being implemented to allow scalar operations on BigInt and
BigUint across the board.
 2017-06-28 16:59:35 +01:00
Sam Cappleman-Lynes 7b7799eab7 Scalar subtraction of a BigDigit from a BigUint 
A BigDigit can be subtracted from a BigUint - this is one of several
operations being implemented to allow scalar operations on BigInt and
BigUint across the board.
 2017-06-28 16:24:56 +01:00
Sam Cappleman-Lynes a2a28c682e Scalar addition of BigDigit to BigUint 
A BigDigit can be added to a BigUint - this is one of several
operations being implemented to allow scalar operations on BigInt and
BigUint across the board.
 2017-06-28 16:11:02 +01:00
Sam Cappleman-Lynes e520bdad0d Add scalar multiplication to BigUint, BigInt 
BigUint and BigInt can now be multiplied by a BigDigit, re-using the same buffer for the output, thereby reducing allocations and copying.
 2017-06-28 14:02:45 +01:00
Josh Stone 8964c65f38 bigint: apply a consistent order of conversion methods 2017-06-21 17:52:24 -07:00
Phaiax 1ea02d8d0c Add _be/_le postfix to from/to_radix functions (BigInt) 2017-06-13 15:36:59 +02:00
Phaiax fc09503d3d Add fn from_radix() for radix > 36. 2017-06-11 20:08:43 +02:00
Phaiax 1ab07df709 Add fn to_radix() for radix > 36. 2017-06-11 18:31:44 +02:00
Josh Stone 0b6cae0dc7 bigint: Create the parsing error better for nested `+` 
If a `+` is encountered in the middle of parsing a BigUint, this should
generate an `ParseIntError::InvalidDigit`.  Since we can't create that
directly, we get it by trying to parse a `u64` from this point, but of
course `+` is a perfectly valid prefix to a `u64`.

Now we include the previous character in the string passed to `u64`, so
it has proper parsing context to understand what's in error.

Fixes #268.
 2017-03-06 13:23:40 -08:00
Josh Stone 4b8c71fbec bigint: Cleanup unused imports 2017-03-06 13:20:30 -08:00
Josh Stone 5c3d759d6c bigint: inline bits() methods 2016-08-10 22:23:28 -07:00
Kent Overstreet 279522316c bigint: Break out into multiple files 2016-07-18 15:56:03 -08:00