Peck lib. A set of library and type functions. ```rust pub mod str { pub const OS_PATH_SEPARATOR: &str = if cfg!(windows) { r"\" } else { "/" }; pub const NUMS_CHARSET: &str = r"0123456789"; pub const FLOAT_CHARSET: &str = r"0.-123456789"; pub const ABS_FLOAT_CHARSET: &str = r".0123456789"; pub fn trunc(input: &str, length: u8) -> &str {} } pub mod usize { pub const APPROX_CM_IN_ARC_SECOND: usize = 3087usize; pub const ARC_SECONDS_IN_360_DEGREES: usize = 1296000usize; pub const ARC_SECONDS_IN_360_DEGREES_INDEXED: usize = 1295999usize; pub const ARC_SECONDS_IN_180_DEGREES: usize = 648000usize; pub const ARC_SECONDS_IN_180_DEGREES_INDEXED: usize = 647999usize; } pub mod f64 { pub const LATITUDE_LIMIT: f64 = 90.0f64; //latitude (-90 to 90), lower = -LATITUDE_LIMIT, upper = LATITUDE_LIMIT pub const LONGITUDE_LIMIT: f64 = 180.0f64; //longitude (-180 to 180), lower = -LONGITUDE_LIMIT, upper = LONGITUDE_LIMIT pub const ARC_SECONDS_IN_360_DEGREES: f64 = 1296000.0f64; pub const ARC_SECONDS_IN_180_DEGREES: f64 = 648000.0f64; pub const EARTH_RADIUS_KM: f64 = 6378.137f64; pub const EARTH_RADIUS_M: f64 = 6378137.0f64; pub const DEG_TO_RAD: f64 = 0.017453292519943295f64; pub const RAD_TO_DEG: f64 = 57.29577951308232f64; pub fn rhs_exact(input: f64) -> f64 {} pub fn split(input: f64) -> (f64, f64) {} pub fn split_abs(input: f64) -> (f64, f64) {} pub fn to_radians(input_degrees: f64) -> f64 {} pub fn to_degrees(input_radians: f64) -> f64 {} pub fn normalise(input: f64, min: f64, max: f64) -> f64 {} pub fn normalised_to_index(input: f64, max: usize) -> usize {} pub fn indexify_lat(lat: f64) -> f64 {} pub fn indexify_long(long: f64) -> f64 {} pub fn indexify_lat_long(lat: f64, long: f64) -> (f64, f64) {} pub fn trunc(input: f64, decimal_places: u8) -> f64 {} pub fn trunc_safe(input: f64, decimal_places: u8) -> Result {} pub fn trunc_exact(input: f64, decimal_places: u8) -> f64 {} pub fn approx_equal_f64(a: f64, b: f64, decimal_places: u8) -> bool {} pub fn approx_equal_infallible_f64(a: f64, b: f64, decimal_places: u8) -> bool {} } pub mod f32 { pub const LATITUDE_LIMIT: f32 = 90.0f32; //latitude (-90 to 90), lower = -LATITUDE_LIMIT, upper = LATITUDE_LIMIT pub const LONGITUDE_LIMIT: f32 = 180.0f32; //longitude (-180 to 180), lower = -LONGITUDE_LIMIT, upper = LONGITUDE_LIMIT pub const ARC_SECONDS_IN_360_DEGREES: f32 = 1296000.0f32; pub const ARC_SECONDS_IN_180_DEGREES: f32 = 648000.0f32; pub const EARTH_RADIUS_KM: f32 = 6378.137f32; pub const EARTH_RADIUS_M: f32 = 6378137.0f32; pub const DEG_TO_RAD: f32 = 0.017453292f32; pub const RAD_TO_DEG: f32 = 57.29578f32; //57.295776 pub fn rhs_exact(input: f32) -> f32 {} pub fn split(input: f32) -> (f32, f32) {} pub fn split_abs(input: f32) -> (f32, f32) {} pub fn to_radians(input_degrees: f32) -> f32 {} pub fn to_degrees(input_radians: f32) -> f32 {} pub fn normalise(input: f32, min: f32, max: f32) -> f32 {} pub fn normalised_to_index(input: f32, max: usize) -> usize {} pub fn indexify_lat(lat: f32) -> f32 {} pub fn indexify_long(long: f32) -> f32 {} pub fn indexify_lat_long(lat: f32, long: f32) -> (f32, f32) {} pub fn trunc(input: f32, decimal_places: u8) -> f32 {} pub fn trunc_safe(input: f32, decimal_places: u8) -> Result {} pub fn trunc_exact(input: f32, decimal_places: u8) -> f32 {} pub fn approx_equal_f32(a: f32, b: f32, decimal_places: u8) -> bool {} pub fn approx_equal_infallible_f32(a: f32, b: f32, decimal_places: u8) -> bool {} } ```