# [−][src]Crate fff

This crate provides traits for working with finite fields.

## Structs

BitIterator | |

CPU_SUPPORTS_ADX_INSTRUCTION |

## Enums

LegendreSymbol | |

PrimeFieldDecodingError | An error that may occur when trying to interpret a |

## Traits

Field | This trait represents an element of a field. |

PrimeField | This represents an element of a prime field. |

PrimeFieldRepr | This trait represents a wrapper around a biginteger which can encode any element of a particular
prime field. It is a smart wrapper around a sequence of |

ScalarEngine | An "engine" is a collection of types (fields, elliptic curve groups, etc.) with well-defined relationships. Specific relationships (for example, a pairing-friendly curve) can be defined in a subtrait. |

SqrtField | This trait represents an element of a field that has a square root operation described for it. |

## Functions

adc | Calculate a + b + carry, returning the sum and modifying the carry value. |

mac_with_carry | Calculate a + (b * c) + carry, returning the least significant digit and setting carry to the most significant digit. |

mod_mul_4w_assign | |

sbb | Calculate a - b - borrow, returning the result and modifying the borrow value. |