C simple stack implementation code, crashed
Hello i am newbie in the forum, i have been trying recently to implement a stack behaviour, but my program return werid values, It compiles without warnings but i have been unavilabe to find the error, here is my code.
Code:
#include <stdio.h>#include <stdlib.h>
typedef struct tNodo{
int valor;
struct tNodo *next;
}Nodo;
typedef struct Tstack{
int size;
Nodo* top;
}Stack;
Stack *getNewStack(){
Stack *s= (Stack*)malloc(sizeof(Stack));
s->size = 0;
s->top = NULL;
return s;
}
void push(Stack *s, int value)
{
if(s)
{
Nodo* nodo = (Nodo*)malloc(sizeof(Nodo));
nodo->valor = value;
nodo->next = s->top;
s->top = nodo;
s->size++;
}
else
{
perror("Strack NULL\n");
}
}
Nodo *pop(Stack *s)
{
if(s)
{
if(s->size)
{
Nodo *aux = (Nodo*)malloc(sizeof(Nodo));
aux->next = s->top;
s->top = s->top->next;
s->size--;
return(aux);
}
}
perror("Void Stack\n");
return NULL;
}
int main()
{
Stack *s = getNewStack();
push(s,45);
push(s,65);
push(s,95);
Nodo * cuales = (Nodo*)malloc(sizeof(Nodo));
cuales = pop(s);
printf("%d\n", cuales->valor);
return 0;
}
