v1.0.1

money v1.0.1 — Safe deterministic money type for Go

This release provides a production-ready money type for Go services with deterministic, integer-based arithmetic and safe transport/DB integration.

✨ Features

• Minor-unit (int64) based money model — no float rounding errors
• MySQL DECIMAL(10,2) scan/write support
• JSON transport as string ("12.34") for HTTP & Kafka safety
• Deterministic rounding modes (HalfUp / Floor / Ceil)
• Proportional allocation with exact-sum guarantee
• Immutable value type (goroutine-safe)
• Zero external dependencies

🧪 Reliability

• Unit tests + property tests
• Fuzz testing for ParseString
• Benchmark coverage for core operations
• High statement coverage

🐛 Fixes

• Prevent overflow in ParseString for extremely large numeric inputs
• Added overflow guards to keep minor-unit conversion safe
• Fuzz-discovered edge cases are now covered by regression corpus

🔒 Guarantees

• No float arithmetic in calculations
• Exact minor-unit math
• Deterministic results across services
• Safe DB ↔ domain ↔ JSON conversion
• Stable v1 API (no breaking changes)

⚠️ Breaking Changes

None.

📦 Install

go get github.com/dahaiyiyimcom/money@v1.0.1

v1.0.0

Initial stable release