first commit

.gitignore

+/target

Cargo.lock

+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
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+
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+checksum = "be4136b2a15dd319360be1c07d9933517ccf0be8f16bf62a3bee4f0d618df427"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "libc"
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+dependencies = [
+ "libc",
+ "rand_chacha",
+ "rand_core",
+]
+
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+ "rand_core",
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+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "stack"
+version = "0.1.0"
+dependencies = [
+ "rand",
+]
+
+[[package]]
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Cargo.toml

+[package]
+name = "stack"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rand = "0.8.5"

src/lib.rs

+pub const STACK_SIZE: usize = 10;
+
+pub mod stack;
\ No newline at end of file

src/main.rs

+use stack::stack::Stack;
+
+fn main() {
+
+    let mut st:Stack<u32> = Stack::new();
+    match st.pop(){
+        Ok(_) => println!("valeur enlevée du sommet, sommet =  {:?}", st.top),
+        Err(e) => println!("Error, cant pop value from stack : {}", e) 
+    }
+    let values = [1,2,3,4,5,6,7,8,9,10,11];
+    for val in values {
+        match st.push(val){
+            Ok(_) => println!("Haut de la pile : {:?} - taille = {}", st.top, st.size),
+            Err(e) => println!("Error, cant push value on stack : {}", e) 
+        }
+    }
+
+    println!("haut de la pile {:?}", st.top);
+    
+    for _ in 0..3{
+        match st.pop(){
+            Ok(_) => println!("valeur enlevée du sommet, sommet =  {:?}", st.top),
+            Err(e) => println!("Error, cant pop value from stack : {}", e) 
+        }
+    }   
+
+
+    let mut st:Stack<&str> = Stack::new();
+    
+    match st.pop(){
+        Ok(_) => println!("valeur enlevée du sommet, sommet =  {:?}", st.top),
+        Err(e) => println!("Error, cant pop value from stack : {}", e) 
+    }
+    let values = ["un","deux","trois"];
+    for val in values {
+        match st.push(val){
+            Ok(_) => println!("Haut de la pile : {:?} - taille = {}", st.top, st.size),
+            Err(e) => println!("Error, cant push value on stack : {}", e) 
+        }
+    }
+
+    println!("haut de la pile {:?}", st.top);
+    
+    for _ in 0..3{
+        match st.pop(){
+            Ok(_) => println!("valeur enlevée du sommet, sommet =  {:?}", st.top),
+            Err(e) => println!("Error, cant pop value from stack : {}", e) 
+        }
+    }  
+
+
+    
+}

src/stack.rs

+use std::fmt;
+use crate::STACK_SIZE;
+
+#[derive(Debug, Clone)]
+pub struct Stack<T>{
+    pub size: usize,
+    data: [Option<T>;STACK_SIZE],
+    pub top :  Option<T>
+}
+
+#[derive(Debug, Clone)]
+pub enum StackError{
+    Empty,
+    Full
+}
+
+impl fmt::Display for StackError {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self{
+            Self::Empty => write!(f, "Removing value from empty stack"),
+            Self::Full => write!(f, "Pushing value from full stack")
+        }
+        
+    }
+}
+
+impl<T> Stack<T>
+where T: Copy, {
+    
+
+    pub fn new() -> Stack<T> {
+        Stack{
+            data : core::array::from_fn(|_| None),
+            size : 0,
+            top : None
+        }
+    } 
+
+    pub fn is_empty(&self) -> bool {
+        if &self.size == &0 {
+            true
+        } 
+        else {
+            false
+        }
+    }
+
+    pub fn is_full(&self) -> bool {
+        if &self.size == &10 {
+            true
+        } 
+        else {
+            false
+        }
+    }
+
+    pub fn push(&mut self, val:T) -> Result<(),StackError> {
+        
+        if self.is_full() {
+            Err(StackError::Full)
+        }
+        else{
+            self.data[self.size] = Some(val);
+            self.size += 1;
+            self.top = Some(val);
+            Ok(())
+        }
+    }
+
+    pub fn pop(&mut self) -> Result<(),StackError> {
+        
+        if self.is_empty() {
+            Err(StackError::Empty)
+        }
+        else{
+            if self.size == 1 {
+                self.top = None;
+            }
+            else{
+                self.top = self.data[self.size-2];
+            }
+            self.data[self.size-1] = None;
+            self.size -= 1;
+            
+            Ok(())
+        }
+    }
+    
+}
\ No newline at end of file