Module numbers 

Checked numeric conversion helpers.

Service code often crosses database, filesystem, and API boundaries that use different integer widths and signedness. These helpers make overflow and sign-loss checks explicit while producing consistent error messages for callers.

Functions

bytes_to_usize

Converts a signed byte count to usize.

calc_total_chunks

Calculates the number of chunks needed to cover total_size.

f64_seconds_to_u64_millis

Converts seconds represented as f64 to rounded milliseconds.

i32_to_usize

Converts i32 to usize.

i64_to_i32

Converts i64 to i32.

i64_to_u64

Converts i64 to u64.

i64_to_usize

Converts i64 to usize.

non_zero_u32

Converts 0 to NonZeroU32::MIN and preserves non-zero values.

non_zero_u64

Converts 0 to NonZeroU64::MIN and preserves non-zero values.

u32_to_i32

Converts u32 to i32.

u32_to_i64

Converts u32 to i64.

u32_to_usize

Converts u32 to usize.

u64_to_i64

Converts u64 to i64.

u64_to_usize

Converts u64 to usize.

u128_to_u64

Converts u128 to u64.

u128_to_u64_saturating

Converts u128 to u64, saturating values above u64::MAX.

usize_to_i32

Converts usize to i32.

usize_to_i64

Converts usize values such as Vec::len() or byte-slice lengths to i64.

usize_to_u32

Converts usize to u32.

usize_to_u64

Converts usize to u64.