How can I change letters to ascii code and print their each value in C++?

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I've tried to practice c++ and this is what I wanted

=======================================================
Input : (put some letters, in this case, I will put AAA) AAA
Output : (print each ascii code value of them in this way ) 97 + 97 + 97 = 291
=======================================================

What I have tried:

C++

#include "stdafx.h"
#include <iostream>

using namespace std;

int main()
{
	char str[32] = { 0 };
	int value = 0, i;
	cout << "Input: ";
	cin >> str;

	for (i=0;i<32;i++)
	{
		value += str[i];
	}

	cout << "Output:" << value << endl;
	
    return 0;
}

Posted 9-Apr-18 1:39am

Jung Marco

Updated 9-Apr-18 1:58am

Kornfeld Eliyahu Peter

v2

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3 solutions

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Jochen Arndt · Accepted Answer · 2018-04-09T01:54:00

You have to limit the loop to the number of characters entered. Because you are using C++, there is also no need to use a character array. Use std::string instead:

C++

std::string str;
cin >> str;
for (size_t i = 0; i < str.length(); i++)
{
    value += str[i];
}
// Or since C++11
for (char& c : str)
{
    value += c;
}

Note also that you forgot to print out each single ASCII code which can be done easily in the loop.

Kornfeld Eliyahu Peter · Accepted Answer · 2018-04-09T01:57:00

Casting the value to int ((int)str[i]) will give you the numerical value (not certainly ASCII, as it may depend of your local) of the char, but your way of '+=' will not create a printable line like in your example, but only the final result (sum)...
If you want to add each char's value to the output, put a cout inside the loop too...

KarstenK · Accepted Answer · 2018-04-09T01:59:00

Solution 3

You only missed the correct termination of your loop.

C++

for (i=0;i<strlen(str);i++)

A better solution would also be to use the std::string class.

I hope it helps, because you havent provided any detailed error description.

Posted 9-Apr-18 1:59am

KarstenK

How can I change letters to ascii code and print their each value in C++?

3 solutions

Solution 1

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