Initial commit of BinaryDecimalConverter program

BinaryDecimalConverter.cpp

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+#include <iostream>
+#include <string>
+#include <cmath>
+using namespace std;
+
+// Function to convert a decimal number (as a string) to binary
+void decimalToBinary(string decimalInput);
+
+// Function to convert a binary number (as a string) to decimal
+void binaryToDecimal(string binaryInput);
+
+// Function to validate if a string is a valid decimal number
+bool isValidDecimal(const string& input);
+
+// Function to validate if a string is a valid binary number
+bool isValidBinary(const string& input);
+
+int main(){
+    string input;
+
+    cout << "Enter a number: ";
+    cin >> input;
+
+    // Check if the input is a valid binary or decimal number, and convert it accordingly
+    if (isValidBinary(input)) {
+        binaryToDecimal(input);
+
+    } else if (isValidDecimal(input)) {
+        decimalToBinary(input);
+
+    } else {
+        cout << "This is not a valid number." << endl;
+        return 1;
+    }
+
+    return 0;
+}
+
+// Function to validate if a string is a valid decimal number
+bool isValidDecimal(const string& input) {
+
+    // Check if the input length is greater than or equal to 8 
+    if (input.length() >= 8){
+        return false;
+    }
+
+    // Check if all characters in the string are digits
+    for (char c : input) {
+        if (!isdigit(c)) {
+            return false;
+        }
+    }
+    return true;
+}
+
+// Function to validate if a string is a valid binary number
+bool isValidBinary(const string& input) {
+
+    // Check if the input length is exactly 8 digits
+    if (input.length() != 8) {
+        return false;
+    }
+
+    // Check if all characters are either '0' or '1'
+    for (char c : input) {
+        if (c != '0' && c != '1') {
+            return false;
+        }
+    }
+    return true;
+}
+
+// Function to convert decimal (as a string) to binary
+void decimalToBinary(string decimalInput){
+
+    // Convert the string to an integer
+    int num = stoi(decimalInput);   
+    string binary;
+
+    // Check if the number is within the range 0 to 255. If not, exit the program.
+    if ((num < 0) || (num > 255)){
+        cout << "This decimal number is outside the range 0 to 255." << endl;
+        exit(1);
+    } 
+
+    cout << "Converting decimal to binary..." << endl; 
+
+    for (int i = 0; i < 8; i++){
+
+        // Check if the current bit is 1 or 0 and prepend it to the binary string
+        binary = (num % 2 == 1 ? "1" : "0") + binary;
+
+        // Add a space after every 4 bits for readability
+        if (i == 3){
+            binary = " " + binary;
+        }
+
+        // Divide the number by 2 to get the next bit
+        num /= 2;
+    }
+
+    // Output the binary number
+    cout << "The result is " << binary << endl;
+}
+
+// Function to convert binary (as a string) to decimal
+void binaryToDecimal(string binaryInput){  
+
+    // Validate if the input string contains only '0' and '1'
+    if (!isValidBinary(binaryInput)) {
+        cout << "This is not a valid binary number." << endl;
+        exit(1);
+    }
+
+    int decimalResult = 0;
+    int power = 7;
+
+    cout << "Converting binary to decimal... " << endl;
+
+    for (char c : binaryInput){
+        if (c == '1') {
+            decimalResult += pow(2, power);
+        }
+        power--;
+    }
+
+    // Output the decimal number
+    cout << "The result is " << decimalResult << endl;
+}

README.md

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+# BinaryDecimalConverter
+A simple C++ program to convert between decimal and binary numbers.
+
+## Features
+- Convert decimal numbers (0-255) to 8-bit binary representation.
+- Convert 8-bit binary numbers to decimal representation.
+- Input validation to ensure correct number formats.
+
+## Usage
+1. Clone the repository:  
+git clone https://github.com/AyuExecutes/BinaryDecimalConverter
+
+2. Compile the program:  
+g++ BinaryDecimalConverter.cpp -o BinaryDecimalConverter
+
+3. Run the program:  
+./BinaryDecimalConverter
+
+4. Follow the prompts to enter a number and see the conversion results.  
+Example:  
+
+        Enter a number: 20  
+        Converting decimal to binary...  
+        The result is 0001 0100  
+        
+        Enter a number: 00010100  
+        Converting binary to decimal...  
+        The result is 20