[−][src]Macro myutil::alt
macro_rules! alt { ($condition: expr, $ops: block, $ops2: block) => { ... }; ($condition: expr, $ops: block) => { ... }; ($condition: expr, $ops: expr, $ops2: expr) => { ... }; ($condition: expr, $ops: expr) => { ... }; }
高阶函数中提搞可读性.