From 881e1e9a888687e1fd59c9b5f49103923f0631f3 Mon Sep 17 00:00:00 2001
From: Rachit Bhalla <rachitbhalla1998@gmail.com>
Date: Sun, 18 Oct 2020 18:00:23 +0530
Subject: [PATCH] Implemented octal to hexadecimal conversion Fixes: #633

---
 conversions/octal_to_hexadecimal.c | 33 ++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 conversions/octal_to_hexadecimal.c

diff --git a/conversions/octal_to_hexadecimal.c b/conversions/octal_to_hexadecimal.c
new file mode 100644
index 00000000..d08acac0
--- /dev/null
+++ b/conversions/octal_to_hexadecimal.c
@@ -0,0 +1,33 @@
+#include <math.h>
+#include <stdio.h>
+
+// Converts octal number to decimal number
+long octalToDecimal(long octalValue){
+    long decimalValue = 0;
+    int i = 0;
+    while (octalValue) {
+        // Extracts right-most digit, multiplies it with 8^i, and increment i by 1
+        decimalValue += (long)(octalValue % 10) * pow(8, i++);
+        // Shift right in base 10
+        octalValue /= 10;
+    }
+    return decimalValue;
+}
+char *octalToHexadecimal(long octalValue){
+    char *hexadecimalValue = malloc(256 * sizeof(char));
+    sprintf(hexadecimalValue, "%lX", octalToDecimal(octalValue));
+    return hexadecimalValue;
+}
+int main()
+{
+    int octalValue;
+
+    printf("Enter an octal number: ");
+    scanf("%d", &octalValue);
+
+    //Calling the function octalToHexadecimal
+    char *hexadecimalValue = octalToHexadecimal(octalValue);
+    printf("\nEquivalent hexadecimal number is: %s", hexadecimalValue);
+    free(hexadecimalValue);
+    return 0;
+}