Trait IsNegative 

pub trait IsNegative {
    // Required method
    fn is_negative(&self) -> bool;
}

Trait defining instance method is_negative() : bool that indicates whether the implementing type instance has a value that is deemed to be negative.

Additional Implementations on Foreign Types

Built-in Types

If the feature "implement-IsNegative-for-built_ins" is defined (as it is by "default"), then this is also implemented for the following types:

• f32;
• f64;
• i8;
• i16;
• i32;
• i64;
• i128;
• u8;
• u16;
• u32;
• u64;
• u128;
• isize;
• usize;

Required Methods

fn is_negative(&self) -> bool

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl IsNegative for f32

fn is_negative(&self) -> bool

impl IsNegative for f64

fn is_negative(&self) -> bool

impl IsNegative for i8

fn is_negative(&self) -> bool

impl IsNegative for i16

fn is_negative(&self) -> bool

impl IsNegative for i32

fn is_negative(&self) -> bool

impl IsNegative for i64

fn is_negative(&self) -> bool

impl IsNegative for i128

fn is_negative(&self) -> bool

impl IsNegative for isize

fn is_negative(&self) -> bool

impl IsNegative for u8

fn is_negative(&self) -> bool

impl IsNegative for u16

fn is_negative(&self) -> bool

impl IsNegative for u32

fn is_negative(&self) -> bool

impl IsNegative for u64

fn is_negative(&self) -> bool

impl IsNegative for u128

fn is_negative(&self) -> bool

impl IsNegative for usize

fn is_negative(&self) -> bool

impl<T: IsNegative + ?Sized> IsNegative for Box<T>

Available on non-crate feature nostd only.

fn is_negative(&self) -> bool

impl<T: IsNegative + ?Sized> IsNegative for Rc<T>

Available on non-crate feature nostd only.

fn is_negative(&self) -> bool

Implementors