count

hdp_primitives::aggregate_fn::integer

Function count 

Source 
pub fn count(values: &[U256], ctx: &FunctionContext) -> Result<U256>
Expand description

Count number of values that satisfy a condition

The context is a string of 4 characters:

  • The first two characters are the logical operator
  • The last two characters are the value to compare

The logical operators are:

  • 00: Equal (=)
  • 01: Not equal (!=)
  • 02: Greater than (>)
  • 03: Greater than or equal (>=)
  • 04: Less than (<)
  • 05: Less than or equal (<=)