Decimal To Octal Conversion Program In C Language
This tutorial would help in learning the following:
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- Conversion of numbers from decimal-system (using 0 to 9) to octal-system (using 0 to 7).
- Conversion of characters into their respective ASCII codes.
- Code for Decimal to Octal conversion in C++.
This C Program converts a binary number to an equivalent octal number. Example: Program to convert Binary to Octal. In this program, user is asked to enter the binary number and the program then converts that binary number to the octal number by calling a user defined function. Program for Octal to Decimal Conversion Here we will discuss how to convert an octal number into a decimal number using C programming language. The concept of converting an octal number to a decimal number is very simple, extract the digits of the octal number (start from right for convenience )and multiply the digits.
Convert Decimal to Octal in C++
The decimal number system uses 10 digits (0 to 9) to represent a number while the octal number system uses 7 digits (0 to 7). The following algorithm is used to convert a decimal-number into an octal-number:
let the number be 63
- divide the number by 8 (integer division) and note down the remainder and keep the quotient
63/8: quotient -> 7, remainder -> 7 - repeat step 1 on the quotient till there comes another quotient which is 0, note down the remainders obtained in right-to-left fashion
7/8: quotient -> 0, remainder -> 7; remainder-list -> 77 - the remainders, placed in the right-to-left fashion form the binary representation
(63)10~ (77)8
Each character used in computing is assigned a special ASCII code (decimal-number-system); hence, to convert a character into octal-form, its ASCII code can be obtained and it can be converted.
Note, there can be different encoding systems on different machines.
CPP Program to convert decimal to octal
Output:
Summary:
int octal(int):
- a recursive approach is taken.
- a remainder (x%8) is taken at each call and added next to the remainder of the next call.
- multiplication with 10 is done to ensure that the addition is done in right-to-left fashion and not simple summation.
void stringToOctal(char *):
- a pointer to a collection of characters is taken as parameter.
- as long as the pointer does not point to a null character, the octal form of the current character is printed.
Also read:
Convert Decimal to Octal Program in CWith the help of C Language you can convert any number from decimal to Octal. Decimal number have base 10 and Octal number have base 8. Decimal Number SystemThe decimal numeral system (also called base-ten and occasionally called denary) has ten as its base, which, in decimal, is written 10, as is the base in every positional numeral system. It is the numerical base most widely used by modern civilizations Octal Number SystemThe octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7. Octal numerals can be made from binary numerals by grouping consecutive binary digits into groups of three (starting from the right).