rustc::lint::builtin::ILLEGAL_FLOATING_POINT_CONSTANT_PATTERN

pub static ILLEGAL_FLOATING_POINT_CONSTANT_PATTERN: &'static Lint = &::rustc::lint::Lint{name: "ILLEGAL_FLOATING_POINT_CONSTANT_PATTERN",
                     default_level: ::rustc::lint::Warn,
                     desc:
                         "floating-point constants cannot be used in patterns",}

Unstable (rustc_private)