Function parse_value 

pub fn parse_value(value: &str) -> Result<U256>

Parse a value string as U256, supporting both decimal and hexadecimal formats

This function attempts to parse the value as decimal first, then as hexadecimal (with optional “0x” prefix) if decimal parsing fails.

Arguments

• value - The string value to parse

Returns

• Ok(U256) - The parsed value
• Err(OdosError) - If the value cannot be parsed in either format

Examples

// Decimal format
let val = parse_value("1000")?;
assert_eq!(val, U256::from(1000));

// Hexadecimal with 0x prefix
let val = parse_value("0xff")?;
assert_eq!(val, U256::from(255));

// Hexadecimal without prefix
let val = parse_value("ff")?;
assert_eq!(val, U256::from(255));