Function std::f32::from_str_hex

pub fn from_str_hex(num: &str) -> Option<f32>

Convert a string in base 16 to a float. Accepts a optional binary exponent.

This function accepts strings such as

'a4.fe'
'+a4.fe', equivalent to 'a4.fe'
'-a4.fe'
'2b.aP128', or equivalently, '2b.ap128'
'2b.aP-128'
'.' (understood as 0)
'c.'
'.c', or, equivalently, '0.c'
'+inf', 'inf', '-inf', 'NaN'

Leading and trailing whitespace represent an error.

Arguments

num - A string

Return value

none if the string did not represent a valid number. Otherwise, Some(n) where n is the floating-point number represented by [num].