sorting method

[coolguy1]

Hello, first off I would just like to ensure that this is not for homework or anything like that because I am past the first class of cs111 where by now we should know how to do something like this already, I am just trying to make my own sorting method to have for the future so can anyone please help me on this? When it prints I get 0 so I don't see what I am doing wrong or where I am going wrong please help! Here is my code so far.

#include <iostream>
using namespace std;
int main(){
int a[4] = {0,1,2,3};
int b[4] = {4,2,1,0};
for(int i=0; i<=3; i++){ //read a[i] from left to right
for(int j=3; j>=0; j--){ //read b[j] from right to left
while(!b[j]==a[i]) // comparion
if(b[3]==a[3] && b[2]==a[2] && b[1]==a[1] && b[0]==a[0]); //comparison test
int temp=a[i];
a[i]=b[j];
b[j]=a[i];
cout << b[j];
}
cout << endl;
}
system("pause");
return 0;
}

[LB]

If your assignments do not require you to create your own sorting method, why are you trying to? Just use std::sort.

[coolguy1]

Cause I want it for future references if I ever need to do a program that requires sorting so I can always have it on me whats std::sort a function?

[LB]

http://www.cplusplus.com/reference/algorithm/sort/

[Smac89]

Here is one done before by @cire

http://www.cplusplus.com/forum/beginner/92495/#msg497709

Converted it to use arrays:

typedef unsigned int uint;

void Sort(int array[], int size)//Bubble sort function 
{
  bool Sort;
  
  do
  {
    Sort = false ;
    
    for(uint i = 1; i < size; ++i)
      if (array[i] < array[i-1])
      {
	int temp = array[i];
	array[i] = array[i-1];
	array[i-1] = temp;
	Sort = true;
      }    
    
  } while ( didSort );
      
}

Sort function is found in the algorithm library
http://www.cplusplus.com/reference/algorithm/sort/

[LB]

C++'s std::sort works on arrays too, not just STL containers.

[coolguy1]

Hey lb thanks, but anyway you can help improve my code? and smac89 thanks but i don't want some other code that's already out there would rather much appreciate it if you can help me improve my code?

[Smac89]

You will have to explain the logic you are trying to apply to that sorting function of yours. It is taking over 8 seconds and still counting to sort an array containing 4 values. The reason for this is the while loop in the body of the second for-loop. What is this supposed to be doing?