Function zet::operations::calculate

pub fn calculate<O: LaterOperand>(
    operation: OpName,
    log_type: LogType,
    first_operand: &[u8],
    rest: impl ExactSizeIterator<Item = Result<O>>,
    out: impl Write
) -> Result<()>

Calculates and prints the set operation named by operation. Each file in files is treated as a set of lines:

• OpName::Union prints the lines that occur in any file,
• OpName::Intersect prints the lines that occur in all files,
• OpName::Diff prints the lines that occur in the first file and no other,
• OpName::Single prints the lines that occur once in exactly in the input,
• OpName::Multiple prints the lines that occur more than once in the input,
• OpName::SingleByFile prints the lines that occur in exactly one file, and
• OpName::MultipleByFile prints the lines that occur in more than one file.

The log_type operand specifies whether calculate should print the number of times each line appears in the input (LogType::Lines), the number of files in which each line appears (LogType::Files), or neither (LogType::None).