Struct Buffer 

pub struct Buffer<const N: usize> { /* private fields */ }

Static buffer to hold written text.

Implementation of ToStr must write it from the end.

Buffer size limit

Buffer size cannot be greater than 255.

Following code will fail at compile time:

Invalid buffer creation

to_str::Buffer::<256>::new();;

Formatting with buffer overflow

to_str::Buffer::<1>::new().format_u8(255);

Implementations

impl<const N: usize> Buffer<N>

pub const fn new() -> Self

Creates new instance

pub const fn as_ptr(&self) -> *const u8

Returns pointer to the beginning of underlying buffer

pub const fn capacity() -> usize

Returns buffer overall capacity.

pub const fn as_str(&self) -> &str

Access str from underlying storage

Returns empty if nothing has been written into buffer yet.

pub fn write<T: ToStr>(&mut self, val: T) -> &str

Formats value into buffer, returning text.

Buffer remembers the write, therefore as_str() will return the same text as last write

pub fn format<T: ToStr>(&mut self, val: T) -> &str

Formats value into buffer, returning text.

Buffer remains unaware of modifications

pub fn fmt<T: ToStr>(val: T) -> Self

Creates new instance with formatted value.

impl<const N: usize> Buffer<N>

pub const fn format_u8(&mut self, val: u8) -> &str

Specialized const format of u8 value into buffer, returning text.

pub const fn fmt_u8(val: u8) -> Self

Creates new instance with formatted value.

pub const fn format_u16(&mut self, val: u16) -> &str

Specialized const format of u16 value into buffer, returning text.

pub const fn fmt_u16(val: u16) -> Self

Creates new instance with formatted value.

pub const fn format_u32(&mut self, val: u32) -> &str

Specialized const format of u32 value into buffer, returning text.

pub const fn fmt_u32(val: u32) -> Self

Creates new instance with formatted value.

pub const fn format_u64(&mut self, val: u64) -> &str

Specialized const format of u64 value into buffer, returning text.

pub const fn fmt_u64(val: u64) -> Self

Creates new instance with formatted value.

pub const fn format_usize(&mut self, val: usize) -> &str

Specialized const format of usize value into buffer, returning text.

pub const fn fmt_usize(val: usize) -> Self

Creates new instance with formatted value.

pub const fn format_u128(&mut self, val: u128) -> &str

Specialized const format of u128 value into buffer, returning text.

pub const fn fmt_u128(val: u128) -> Self

Creates new instance with formatted value.

impl<const N: usize> Buffer<N>

pub const fn format_i8(&mut self, val: i8) -> &str

Specialized const format of i8 value into buffer, returning text.

pub const fn fmt_i8(val: i8) -> Self

Creates new instance with formatted value.

pub const fn format_i16(&mut self, val: i16) -> &str

Specialized const format of i16 value into buffer, returning text.

pub const fn fmt_i16(val: i16) -> Self

Creates new instance with formatted value.

pub const fn format_i32(&mut self, val: i32) -> &str

Specialized const format of i32 value into buffer, returning text.

pub const fn fmt_i32(val: i32) -> Self

Creates new instance with formatted value.

pub const fn format_i64(&mut self, val: i64) -> &str

Specialized const format of i64 value into buffer, returning text.

pub const fn fmt_i64(val: i64) -> Self

Creates new instance with formatted value.

pub const fn format_isize(&mut self, val: isize) -> &str

Specialized const format of isize value into buffer, returning text.

pub const fn fmt_isize(val: isize) -> Self

Creates new instance with formatted value.

pub const fn format_i128(&mut self, val: i128) -> &str

Specialized const format of i128 value into buffer, returning text.

pub const fn fmt_i128(val: i128) -> Self

Creates new instance with formatted value.

Trait Implementations

impl<const N: usize> AsRef<str> for Buffer<N>

fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

impl<const N: usize> Debug for Buffer<N>

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<const N: usize> Display for Buffer<N>

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.