Rust i64

// Explicit type annotation
let a: i64 = 100_000;

// Literal suffix
let b = -50i64;
let c = 1_000_000_i64;

// Base-specific literals
let hex: i64 = 0x1A_i64;       // Hexadecimal
let octal: i64 = 0o77_i64;     // Octal
let binary: i64 = 0b1010_i64;  // Binary

let max = i64::MAX;

// Returns an Option<i64>; evaluates to None if overflow occurs
let checked = max.checked_add(1); 

// Wraps around the boundary (evaluates to i64::MIN)
let wrapped = max.wrapping_add(1); 

// Caps at the boundary (evaluates to i64::MAX)
let saturated = max.saturating_add(1); 

// Returns a tuple (i64, bool) containing the wrapped result and an overflow flag
let (overflowed_val, did_overflow) = max.overflowing_add(1); 

let small_int: i32 = -42;
let extended: i64 = small_int as i64; // Sign-extended to 64 bits

let large_int: i128 = 10_000_000_000_000_000_000_000;
let truncated: i64 = large_int as i64; // Higher-order bits are truncated

let float_val: f64 = 99.99;
let from_float: i64 = float_val as i64; // Fractional part is truncated (evaluates to 99)