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 1// Package int256 implements 256-bit signed integer arithmetic for GnoSwap.
 2//
 3// This package provides an Int type that represents a 256-bit signed integer
 4// using two's complement representation. It supports the full range from
 5// -(2^255) to 2^255-1. The unsuffixed Add, Sub, and Mul methods return the
 6// truncated 256-bit result; AddOverflow, SubOverflow, and MulOverflow also
 7// return a signed-overflow flag.
 8//
 9// The implementation follows Ethereum's int256 semantics, ensuring compatibility
10// for cross-chain DeFi protocols. Operations are optimized for common AMM
11// calculations including tick math and price computations.
12package int256