rust_demos 0.1.0

Aa demo crate
Documentation 
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fn main(){
	let n:i16=-9;
	let prime=match is_prime(n){
		Ok(true)=>println!("Given number is a prime"),
		Ok(false)=>println!("Given number is not a prime"),
		Err(e)=>println!("Error:{}",e),
	};

}
fn is_prime(n:i16)->Result<bool,String>{
	if n<=0{
		return Err("Number is not valid".to_string());
	}
	for i in 2..n{
		if n%i==0{
			return Ok(false);
		}
	}
	return Ok(true);
}