Module math 

Arithmetic checking and numeric conversion helpers.

Exported macros separate recoverable, expected, and prevalidated arithmetic. Conversion helpers centralize errors, panics, and deliberate truncation.

Modules

expect_into 🔒

expected 🔒

tried 🔒

Macros

checked_ops

Transforms arithmetic expressions into checked operations.

Constants

USIZE_MAX_EXCLUSIVE 🔒

Traits

ExpectInto

Converts values with TryFrom and panics on failure.

Expected

Adds checked arithmetic methods that panic on failure.

Tried

Adds checked arithmetic methods that return a Result.

Functions

effective_cap

Combines per-call and configuration concurrency caps.

expect_into

Converts a value with TryFrom and panics if conversion fails.

fetch_add_usize

Adds a usize count to an atomic u64 counter, saturating the count at u64::MAX.

ruma_from_u64

Converts a u64 to a Matrix unsigned integer.

ruma_from_usize

Converts a usize to a Matrix unsigned integer.

ruma_from_usize_saturating

Converts a usize to a Matrix unsigned integer, saturating at the largest value [UInt] supports.

try_into

Converts a value with TryFrom and maps failure to an arithmetic error.

u64_from_u128_saturating

Converts a u128 to u64, saturating at u64::MAX.

u64_from_usize_saturating

Converts a usize to u64, saturating at u64::MAX.

usize_from_f64

Converts a representable nonnegative f64 to usize by truncating toward zero.

usize_from_ruma

Converts a Matrix unsigned integer to usize.

usize_from_ruma_bounded

Converts a Matrix unsigned integer to a bounded usize.

usize_from_u64_truncated

Converts a u64 to usize with deliberate truncation when necessary.