Update "rand" crate to 0.8.5

Author: eliovir

Cargo.toml

@@ -9,7 +9,7 @@ path = "inifile"
 
 [dependencies]
 getopts = "0.2.21"
-rand = "0.3"
+rand = "0.8.5"
 
 [[bin]]
 name = "api-getopts"

api-rand.rs

@@ -9,10 +9,10 @@
 
 extern crate rand;
 
-use rand::Rng;
+use rand::prelude::*;
 
 fn main() {
-    let mut tmp_rand = rand::thread_rng();
+    let mut tmp_rand = thread_rng();
 
     let boolean: bool = tmp_rand.gen();
     println!("bool: {}", boolean);
@@ -29,7 +29,7 @@ fn main() {
     let float64: f64 = tmp_rand.gen::<f64>();
     println!("float32: {}\nfloat64: {}", float32, float64);
 
-    let int8_for_range: u8 = tmp_rand.gen_range(0, 127);
+    let int8_for_range: u8 = tmp_rand.gen_range(0..=127);
     println!("int8_for_range: {}", int8_for_range);
 
     let tuple = rand::random::<(f32, f32)>();

book-3_1-guessing_game.rs

@@ -7,7 +7,7 @@ use std::io;
 fn main() {
     println!("Guess the number!");
 
-    let secret_number = rand::thread_rng().gen_range(1, 101);
+    let secret_number = rand::thread_rng().gen_range(1..=101);
 
     loop {
         println!("Please input your guess.");

tutorial-04_2-pattern-matching.rs

@@ -24,7 +24,7 @@ fn angle(vector: (f64, f64)) -> f64 {
     }
 }
 fn main() {
-    let my_number: u32 = rand::thread_rng().gen_range(0, 10);
+    let my_number: u32 = rand::thread_rng().gen_range(0..=10);
     println!("my_number = {}", my_number);
 
     /*
@@ -54,7 +54,7 @@ fn main() {
         }
     }
 
-    let age: u32 = rand::thread_rng().gen_range(0, 100);
+    let age: u32 = rand::thread_rng().gen_range(0..=100);
     println!("age = {}", age);
     match age {
         a @ 0..=20 => println!("{} years old", a),

tutorial-tasks-02_3-arc.rs

@@ -19,7 +19,7 @@ fn pnorm(nums: &[f64], p: usize) -> f64 {
 
 fn main() {
     let numbers: Vec<f64> = (1..1000000)
-        .map(|_| rand::thread_rng().gen_range(1.0, 101.0))
+        .map(|_| rand::thread_rng().gen_range(1.0..=101.0))
         .collect();
     // With simple pipes, without Arc, a copy would have to be made for each thread.
     //