sizing

Documentation

Overview

Package sizing provides safe size arithmetic and conversions to prevent overflow.

Index

• func AddUint64(a, b uint64) (uint64, bool)
• func ReadAllWithLimit(r io.Reader, maxSize uint64, overflowErr error) ([]byte, error)
• func ToInt(size uint64, overflowErr error) (int, error)
• func ToInt64(size uint64, overflowErr error) (int64, error)

Functions

func AddUint64

func AddUint64(a, b uint64) (uint64, bool)

AddUint64 adds two uint64 values, returning (result, false) on overflow.

func ReadAllWithLimit

func ReadAllWithLimit(r io.Reader, maxSize uint64, overflowErr error) ([]byte, error)

ReadAllWithLimit reads up to maxSize bytes from r. Returns overflowErr if more than maxSize bytes are available.

func ToInt

func ToInt(size uint64, overflowErr error) (int, error)

ToInt converts a uint64 to int, returning overflowErr if it doesn't fit.

func ToInt64

func ToInt64(size uint64, overflowErr error) (int64, error)

ToInt64 converts a uint64 to int64, returning overflowErr if it doesn't fit.