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use error::ParseError;
use RoundingMode;
pub trait ToF64 {
fn to_f64_res(self)
-> ParseResultF64;
fn to_f64(self)
-> f64;
}
pub trait ToF64RM {
fn to_f64_rm_res(self, rm: RoundingMode)
-> ParseResultF64;
fn to_f64_rm(self, rm: RoundingMode)
-> f64;
}
pub fn bool_to_f64_res(a: bool)
-> ParseResultF64 {
if a { Ok(1.0) } else { Ok(0.0) }
}
pub fn bool_to_f64(a: bool)
-> f64 {
if a { 1.0 } else { 0.0 }
}
pub fn string_to_f64_res(a: String)
-> ParseResultF64 {
match a.parse::<f64>() {
Ok(n) => Ok(n),
Err(_) => Err(ParseError::InvalidNumber(a))
}
}
pub fn string_to_f64(a: String)
-> f64 {
match string_to_f64_res(a) {
Ok(i) => i,
Err(err) => panic!("{}",err)
}
}
pub fn str_to_f64_res(a: &str)
-> ParseResultF64 {
match a.parse::<f64>() {
Ok(n) => Ok(n),
Err(_) => Err(ParseError::InvalidNumber(a.to_string()))
}
}
pub fn str_to_f64(a: &str)
-> f64 {
match str_to_f64_res(a) {
Ok(i) => i,
Err(err) => panic!("{}",err)
}
}
pub type ParseResultF64 = Result<f64, ParseError>;