roman numeral converter

Posted on 1997-07-11
Last Modified: 2012-05-04
I need a small c++ program to convert roman numerals to decimal. Any takers? Must provide souce...
Question by:datamike
  • 3
  • 2

Accepted Solution

ocurance earned 150 total points
ID: 1164783
Pass in the char array as a roman numeral, and Roman2Decimal will return the value that you're looking for.

int Roman2Decimal(const char *Roman)
   int Total = 0;

   for(int i = 0; i < strlen(Roman); i++)
            if(GetValue(Roman[i]) < GetValue(Roman[i + 1]))
                Total -= GetValue(Roman[i]);
                Total += GetValue(Roman[i]);


    return Total;


int GetValue(char numeral)
   int value = 0;

      case 'I':
        value = 1;

      case 'V':
        value = 5;

      case 'X':
         value = 10;

   return value;

Good Luck,

Expert Comment

ID: 1164784
Did this answer your question sufficiently?  Are you going to grade this now?

Author Comment

ID: 1164785
could you provide an entire c++ program? could you also do it without using pointers? if you can do these tasks, I'll give you an 'a' and an extra 100 points for 250 total.

Expert Comment

ID: 1164786
Give me your email address and I'll send you the whole program code.

Author Comment

ID: 1164787
send to:

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

In days of old, returning something by value from a function in C++ was necessarily avoided because it would, invariably, involve one or even two copies of the object being created and potentially costly calls to a copy-constructor and destructor. A…
Go is an acronym of golang, is a programming language developed Google in 2007. Go is a new language that is mostly in the C family, with significant input from Pascal/Modula/Oberon family. Hence Go arisen as low-level language with fast compilation…
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.
The viewer will learn additional member functions of the vector class. Specifically, the capacity and swap member functions will be introduced.

820 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question