# bin/i64-at Read a signed 64-bit integer (little-endian) from a byte string at `offset`. Precision: Deft numbers are f64, so 64-bit values above 2^53 in magnitude are lossy on read — the same precedent as SQLite INTEGER columns. ## Syntax

[bin/i64-at $bytes $offset]

## Parameters - `$bytes` — Byte string (raw bytes carried as a Deft string). - `$offset` — 0-based byte offset ## Examples

def buf [bin/set-i64 [bin/zeros 8] 0 -123456789]
[bin/i64-at $buf 0] # → -123456789
[bin/u8-at $buf 0] # → 235

## Returns Number. A negative or out-of-bounds offset returns `%Err{:message}`. ## See Also `bin/i64-le-at`, `bin/i64-be-at`, `bin/set-i64`, `bin/bytes`