Function lexical_core::parse_with_options

source · [−]
pub fn parse_with_options<N: FromLexicalWithOptions, const FORMAT: u128>(
    bytes: &[u8], 
    options: &N::Options
) -> Result<N>
Expand description

Parse complete number from string with custom parsing options.

This method parses the entire string, returning an error if any invalid digits are found during parsing.

  • FORMAT - Packed struct containing the number format.
  • bytes - Byte slice containing a numeric string.
  • options - Options to customize number parsing.

Example

#[cfg(all(feature = "parse-floats", feature = "format"))] {
const JSON: u128 = lexical_core::format::JSON;
let options = lexical_core::ParseFloatOptions::new();
let string = "3.14159265359";
let result = lexical_core::parse_with_options::<f32, JSON>(string.as_bytes(), &options);
assert_eq!(result, Ok(3.14159265359_f32));