Module encoding 

Const-friendly decoding/encoding operations for Uint.

Structs

EncodedUint

Uint encoded as bytes.

RadixDivisionParams 🔒

Parameter set used to perform radix encoding by division.

SliceDecodeByLimb 🔒

Wrap a Limb slice as a target for decoding

TryFromSliceError

Returned if an object cannot be instantiated from the given byte slice.

Constants

RADIX_ENCODING_LIMBS_LARGE 🔒

RADIX_ENCODING_MAX 🔒

RADIX_ENCODING_MIN 🔒

RADIX_ENCODING_THRESHOLD_LARGE 🔒

Traits

DecodeByLimb 🔒

Allow decoding of integers into fixed and variable-length types

Functions

cast_slice 🔒

cast_slice_mut 🔒

decode_hex_byte 🔒

Decode a single byte encoded as two hexadecimal characters. Second element of the tuple is non-zero if the bytes values are not in the valid range (0-9, a-z, A-Z).

decode_nibble 🔒

Decode a single nibble of upper or lower hex

fill_limbs_from_be_slice_truncated 🔒

Common implementation of a truncating big endian decoder which supports partial inputs and truncates inputs larger than the provided bits_precision.

fill_limbs_from_le_slice_truncated 🔒

Common implementation of a truncating little endian decoder which supports partial inputs and truncates inputs larger than the provided bits_precision.

mask_high_limb 🔒

Handle masking for the case that bits_precision is not aligned to Limb::BITS.

radix_decode_str 🔒

Decode an ascii string in base radix, writing the result to the DecodeByLimb instance out.

radix_decode_str_aligned_digits 🔒

Decode digits for bases where an integer number of characters can represent a saturated Limb (specifically 2, 4, and 16).

radix_decode_str_digits 🔒

Decode a string of digits in base radix

radix_encode_limbs_by_shifting 🔒

For radix values which are a power of two, encode the mutable limb slice to the output buffer as ASCII characters in base radix. Leading zeros are added to fill out. The slice limbs is used as a working buffer. Output will be truncated if the provided buffer is too small.

radix_encode_limbs_mut_to_string 🔒

Encode a slice of limbs to a string in base radix. The contents of the slice will be used as a working buffer. The result will have no leading zeros unless the value itself is zero.

radix_encode_limbs_to_string 🔒

Encode a slice of limbs to a string in base radix. The result will have no leading zeros unless the value itself is zero.

radix_large_divisor 🔒

Compute the maximum radix divisor for a number of limbs. Returns a pair of the large divisor value and the number of digits, such that divisor = radix ** digits. The value div_limb is the largest power of radix that can fit within a limb.

radix_preprocess_str 🔒

Perform basic validation and pre-processing on a digit string