Recently I wrote a parser generator, which would take a rule structure and return a function that does the parsing. Lambdas were very useful here, and I do not

Recently I wrote a parser generator, which would take a rule structure and return a function that does the parsing. Lambdas were very useful here, and I do not know how I would've implemented this without them, at least in an efficient manner, because they let me do something like this: Parser ParserGenerator::compileLiteral(Rule& rule){ const string literal = rule.value; Parser parser = [literal] (shared_ptr<State> state){ //parse the literal... state.Advance(literal.size()) return state; } return parser } Solving this without lambdas would require a different encapsulation mechanism for the rule data, such as a class, which (IMHO) would make the code less idiomatic. So lambdas are actually very useful!