pub trait FromRadix16: Sized {
// Required method
fn from_radix_16(_: &[u8]) -> (Self, usize);
}Expand description
Types implementing this trait can be parsed from a positional numeral system with radix 16
Required Methods§
Sourcefn from_radix_16(_: &[u8]) -> (Self, usize)
fn from_radix_16(_: &[u8]) -> (Self, usize)
Parses an integer from a slice.
§Example
use atoi::FromRadix16;
// Parsing to digits from a slice
assert_eq!((42,2), u32::from_radix_16(b"2a"));
// Additional bytes after the number are ignored
assert_eq!((42,2), u32::from_radix_16(b"2a is the answer to life, the universe and everything"));
// (0,0) is returned if the slice does not start with a digit
assert_eq!((0,0), u32::from_radix_16(b"Sadly we do not know the question"));
// While signed integer types are supported...
assert_eq!((42,2), i32::from_radix_16(b"2a"));
// Signs are not allowed (even for signed integer types)
assert_eq!((0,0), i32::from_radix_16(b"-2a"));
// Leading zeros are allowed
assert_eq!((42,4), u32::from_radix_16(b"002a"));
// so are uppercase letters
assert_eq!((42,4), u32::from_radix_16(b"002A"));§Return
Returns a tuple with two numbers. The first is the integer parsed or zero, the second is the index of the byte right after the parsed number. If the second element is zero the slice did not start with an ASCII digit.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.