Function frc46_token::token::validate_allowance

source ยท 
pub fn validate_allowance<'a>(
    a: &'a TokenAmount,
    name: &'static str,
) -> Result<&'a TokenAmount, TokenError>
Expand description

Validates that an allowance is non-negative. Allowances do not need to be an integer multiple of granularity.

Returns the argument, or an error.