Module safe_math 

Safe arithmetic operations with overflow detection.

This module provides traits and functions for performing arithmetic operations that detect overflow and return errors instead of panicking or wrapping.

Security

Arithmetic overflow in filesystem code can lead to serious security vulnerabilities like buffer overflows. Always use these checked operations when computing sizes, offsets, or counts from untrusted metadata.

Traits

CheckedOps

Trait for checked arithmetic operations.

CheckedSliceOps

Extension trait for checked slice operations.

Functions

align_down

Aligns a value down to the given alignment.

align_up

Aligns a value up to the given alignment.

div_ceil

Computes ceil(a / b) without overflow.

saturating_div

Saturating divide that returns 0 for division by zero.