XION
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  • Welcome to XION
  • XION'S Core
    • Concepts
      • Generalized Chain Abstraction
      • Intro to Account Abstraction
      • XION's Meta Accounts
      • Meta Accounts Design
      • Architecture & Tech Glossary
      • Use Cases
  • developers
    • XION Quick Start
      • Zero to App in 5 Minutes
        • Launch a User Map App on XION in 5 Minutes
        • React Native Mobile App on XION in 5 Minutes
        • Todo App
          • Build a TODO App using the Collection-Document Storage Smart Contract
          • Build a TODO Mobile App using the DocuStore Contract
    • Mobile App Development
      • Set up your XION Mobile Development Environment
      • Build a TODO Mobile App using the DocuStore Contract
      • Create Mobile App and Integrate Meta Account Authentication
      • Building a React Native Mobile App with Abstraxion (Xion.js)
    • Getting Started (Advanced)
      • Set Up Local Environment
        • Setting up your Local Smart Contract Development Environment for XION
          • Setting up your XION Smart Contract Development Environment on Windows (WSL2 + Ubuntu)
        • Set Up an Integrated Development Environment (IDE)
        • Interacting with Xion Chain using Xion Daemon
      • Your First Contract
        • Deploying Your First Smart Contract on XION
      • Gasless UX & Permission Grants
        • Enabling Gasless Transactions with Treasury Contracts
      • App Development
        • Account Abstraction with Gasless Transactions
        • Interact with XION via your Backend Service
    • Re-using Existing Contracts
      • Deployed Contracts on XION
      • Non-Fungible Tokens (NFTs)
      • Fungible Tokens
      • Marketplace
      • Multisig
      • Proxy Contracts
      • Membership Management
      • Governance
      • Valuts
      • SCV Audited Contracts
    • Web3 for Web2 Developers
      • Web2 vs Web3 App Architecture: A Comparison
      • Misconceptions and Misapplied Web2 Patterns
      • Recommended Architecture for Apps on XION
    • Building for Mainnet
      • Xion Testnet: Your Development Playground
      • Building with Audited & Battle-Tested Contracts
      • Community Engagement: Building Support for Your app
      • Deploying to Xion Mainnet
        • Smart Contract Audits: Process, Costs & Support
        • Governance Process to Deploying Smart Contracts to Mainnet
    • Learn & Build
      • Token Factory
        • Creating, Minting, and Interacting with a Token Factory Token
        • Building a React dApp to Interact with Token Factory Tokens
        • Integrating a Token Factory Token in a Smart Contract
      • Websockets
        • WebSockets with Xion: Real-Time Communication
      • Oracles
        • Creating a Smart Contract with Pyth Oracle Integration
      • Indexers: Optimized Data Retrieval
        • SubQuery
      • Use Cases
        • Building a Per-User Data Storage App
        • Build a TODO App using the Collection-Document Storage Smart Contract
      • Crossmint Integration
        • Crossmint Digital Collectibles Checkout via Credit Card
    • Reference and Resources
      • Requesting XION Testnet Tokens
      • Public Endpoints & Resources
      • Block Explorers
      • Governance
        • Deploying Smart Contracts to Mainnet
      • Developer Tools: Abstract
      • IBC Denoms on XION Networks
      • Frequently Asked Questions
      • XION Token Contract Addresses on EVM Chains
  • Nodes & Validators
    • Run a Node
      • System Specifications
      • Build the Xion Daemon
      • Download the Xion Daemon
      • Configure the Xion Daemon
        • app.toml
        • client.toml
        • config.toml
      • Join the XION Network
        • xion-testnet-1
      • Confirm node is running
    • Become a Validator
      • Initial Setup
      • Obtain a XION Wallet Address
      • Obtain Funds
        • Testnet
      • Create Validator
    • IBC Relayers and Tokens
  • Others
    • Resources
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On this page
  • Math Functions in CosmWasm
  • Uint128
  • Uint64
  • Decimal

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  1. developers
  2. Reference and Resources
  3. CosmWasm Resources
  4. Contract Semantics

Math

Math Functions in CosmWasm

The mathematical functions employed in CosmWasm are built upon standard Rust. However, there are helper functions provided for u128, u64, and decimal data types.

Uint128

Uint128 is a lightweight wrapper for u128 that utilizes string-based JSON encoding and decoding. This enables the complete u128 range to be accessible for clients that process JSON numbers as floats, such as JavaScript and jq.

Uint64

Uint64 is a minimal layer that wraps u64 and employs strings for JSON encoding and decoding. This approach allows the full u64 range to be leveraged by clients that convert JSON numbers to floats, like JavaScript and jq.

Decimal

Decimal is a fixed-point decimal value characterized by 18 fractional digits. For example, Decimal(1_000_000_000_000_000_000) is equivalent to 1.0. The largest possible value that can be represented is 340282366920938463463.374607431768211455, which is calculated as (2^128 - 1) divided by 10^18.

Last updated 1 year ago

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