extern crate stud_rust_base;
-use stud_rust_base::io::*;
-use std::env;
+use stud_rust_base::{io::*, cli::CliErr};
+use std::{env, fmt::Display, error::Error};
-fn main() {
+fn main() -> Result<(), Box<dyn Error>> {
let mut args = env::args();
args.next();
match &args.collect::<Vec<String>>()[..] {
[data_type, input1, input2] => {
match data_type.as_ref() {
- "i8" => compare_values(&Vec::<i8>::load_from(input1).expect("Failed to read from input1"), &Vec::<i8>::load_from(input2).expect("Failed to read from input2")),
- "u8" => compare_values(&Vec::<u8>::load_from(input1).expect("Failed to read from input1"), &Vec::<u8>::load_from(input2).expect("Failed to read from input2")),
- "i16" => compare_values(&Vec::<i16>::load_from(input1).expect("Failed to read from input1"), &Vec::<i16>::load_from(input2).expect("Failed to read from input2")),
- "u16" => compare_values(&Vec::<u16>::load_from(input1).expect("Failed to read from input1"), &Vec::<u16>::load_from(input2).expect("Failed to read from input2")),
- "i32" => compare_values(&Vec::<i32>::load_from(input1).expect("Failed to read from input1"), &Vec::<i32>::load_from(input2).expect("Failed to read from input2")),
- "u32" => compare_values(&Vec::<u32>::load_from(input1).expect("Failed to read from input1"), &Vec::<u32>::load_from(input2).expect("Failed to read from input2")),
- "i64" => compare_values(&Vec::<i64>::load_from(input1).expect("Failed to read from input1"), &Vec::<i64>::load_from(input2).expect("Failed to read from input2")),
- "u64" => compare_values(&Vec::<u64>::load_from(input1).expect("Failed to read from input1"), &Vec::<u64>::load_from(input2).expect("Failed to read from input2")),
- "f32" => compare_values(&Vec::<f32>::load_from(input1).expect("Failed to read from input1"), &Vec::<f32>::load_from(input2).expect("Failed to read from input2")),
- "f64" => compare_values(&Vec::<f64>::load_from(input1).expect("Failed to read from input1"), &Vec::<f64>::load_from(input2).expect("Failed to read from input2")),
- "int8" => compare_values(&Vec::<i8>::load_from(input1).expect("Failed to read from input1"), &Vec::<i8>::load_from(input2).expect("Failed to read from input2")),
- "uint8" => compare_values(&Vec::<u8>::load_from(input1).expect("Failed to read from input1"), &Vec::<u8>::load_from(input2).expect("Failed to read from input2")),
- "int16" => compare_values(&Vec::<i16>::load_from(input1).expect("Failed to read from input1"), &Vec::<i16>::load_from(input2).expect("Failed to read from input2")),
- "uint16" => compare_values(&Vec::<u16>::load_from(input1).expect("Failed to read from input1"), &Vec::<u16>::load_from(input2).expect("Failed to read from input2")),
- "int32" => compare_values(&Vec::<i32>::load_from(input1).expect("Failed to read from input1"), &Vec::<i32>::load_from(input2).expect("Failed to read from input2")),
- "uint32" => compare_values(&Vec::<u32>::load_from(input1).expect("Failed to read from input1"), &Vec::<u32>::load_from(input2).expect("Failed to read from input2")),
- "int64" => compare_values(&Vec::<i64>::load_from(input1).expect("Failed to read from input1"), &Vec::<i64>::load_from(input2).expect("Failed to read from input2")),
- "uint64" => compare_values(&Vec::<u64>::load_from(input1).expect("Failed to read from input1"), &Vec::<u64>::load_from(input2).expect("Failed to read from input2")),
- "float32" => compare_values(&Vec::<f32>::load_from(input1).expect("Failed to read from input1"), &Vec::<f32>::load_from(input2).expect("Failed to read from input2")),
- "float64" => compare_values(&Vec::<f64>::load_from(input1).expect("Failed to read from input1"), &Vec::<f64>::load_from(input2).expect("Failed to read from input2")),
+ "i8" => { compare_values(&Vec::<i8>::load_from(input1)?, &Vec::<i8>::load_from(input2)?); Ok(()) },
+ "u8" => { compare_values(&Vec::<u8>::load_from(input1)?, &Vec::<u8>::load_from(input2)?); Ok(()) },
+ "i16" => { compare_values(&Vec::<i16>::load_from(input1)?, &Vec::<i16>::load_from(input2)?); Ok(()) },
+ "u16" => { compare_values(&Vec::<u16>::load_from(input1)?, &Vec::<u16>::load_from(input2)?); Ok(()) },
+ "i32" => { compare_values(&Vec::<i32>::load_from(input1)?, &Vec::<i32>::load_from(input2)?); Ok(()) },
+ "u32" => { compare_values(&Vec::<u32>::load_from(input1)?, &Vec::<u32>::load_from(input2)?); Ok(()) },
+ "i64" => { compare_values(&Vec::<i64>::load_from(input1)?, &Vec::<i64>::load_from(input2)?); Ok(()) },
+ "u64" => { compare_values(&Vec::<u64>::load_from(input1)?, &Vec::<u64>::load_from(input2)?); Ok(()) },
+ "f32" => { compare_values(&Vec::<f32>::load_from(input1)?, &Vec::<f32>::load_from(input2)?); Ok(()) },
+ "f64" => { compare_values(&Vec::<f64>::load_from(input1)?, &Vec::<f64>::load_from(input2)?); Ok(()) },
+ "int8" => { compare_values(&Vec::<i8>::load_from(input1)?, &Vec::<i8>::load_from(input2)?); Ok(()) },
+ "uint8" => { compare_values(&Vec::<u8>::load_from(input1)?, &Vec::<u8>::load_from(input2)?); Ok(()) },
+ "int16" => { compare_values(&Vec::<i16>::load_from(input1)?, &Vec::<i16>::load_from(input2)?); Ok(()) },
+ "uint16" => { compare_values(&Vec::<u16>::load_from(input1)?, &Vec::<u16>::load_from(input2)?); Ok(()) },
+ "int32" => { compare_values(&Vec::<i32>::load_from(input1)?, &Vec::<i32>::load_from(input2)?); Ok(()) },
+ "uint32" => { compare_values(&Vec::<u32>::load_from(input1)?, &Vec::<u32>::load_from(input2)?); Ok(()) },
+ "int64" => { compare_values(&Vec::<i64>::load_from(input1)?, &Vec::<i64>::load_from(input2)?); Ok(()) },
+ "uint64" => { compare_values(&Vec::<u64>::load_from(input1)?, &Vec::<u64>::load_from(input2)?); Ok(()) },
+ "float32" => { compare_values(&Vec::<f32>::load_from(input1)?, &Vec::<f32>::load_from(input2)?); Ok(()) },
+ "float64" => { compare_values(&Vec::<f64>::load_from(input1)?, &Vec::<f64>::load_from(input2)?); Ok(()) },
_ => {
print_usage();
- panic!("Unknown data_type {}", data_type);
+ Err(Box::new(CliErr("Invalid data type")))
}
- };
+ }
},
_ => {
print_usage();
- panic!("Invalid input")
+ Err(Box::new(CliErr("Invalid arguments")))
},
}
}
");
}
-use std::fmt::Display;
-
fn compare_values<T>(values1: &[T], values2: &[T]) where
T: Display,
T: PartialOrd
{
if values1.len() != values2.len() {
- println!("Can only compare vectors of equal size. The first vector has {} elements. The second vector has {} elements.", values1.len(), values2.len());
+ println!("0");
+ eprintln!("Can only compare vectors of equal size. The first vector has {} elements. The second vector has {} elements.", values1.len(), values2.len());
return
}
match first_diff {
Some(index) => {
- println!("The vectors differ.");
- println!("{} elements are smaller in the first vector.", v1_smaller_count);
- println!("{} elements are smaller in the second vector.", v2_smaller_count);
- println!("{} elements are the same.", values1.len() - v1_smaller_count - v2_smaller_count);
- println!("{} elements are different.", v1_smaller_count + v2_smaller_count);
- println!("The vectors have {} elements.", values1.len());
- println!("The first element that differs is at index {}.", index);
+ eprintln!("The vectors differ.");
+ eprintln!("{} elements are smaller in the first vector.", v1_smaller_count);
+ eprintln!("{} elements are smaller in the second vector.", v2_smaller_count);
+ eprintln!("{} elements are the same.", values1.len() - v1_smaller_count - v2_smaller_count);
+ println!("{}", values1.len() - v1_smaller_count - v2_smaller_count);
+ eprintln!("{} elements are different.", v1_smaller_count + v2_smaller_count);
+ eprintln!("The vectors have {} elements.", values1.len());
+ eprintln!("The first element that differs is at index {}.", index);
},
None => {
- println!("The vectors are the same and have {} elements.", values1.len());
+ println!("{}", values1.len());
+ eprintln!("The vectors are the same and have {} elements.", values1.len());
},
}
}