ROMAN2LONG
NAME
roman2int − convert ASCII string containing a Roman Numeral value to signed int.
LIBRARY
Roman Numeral Conversion API (libroman, -lroman)
SYNOPSIS
#include <roman.h>
int
roman2int(const char * str);
DESCRIPTION
The function roman2int takes an argument of str and returns an integer containing the value of the Roman Numeral.
RETURN VALUES
If successful, roman2int returns the numeric value of str or −1 if an error occurred (in which case, errno is set appropriately).
ERRORS
|
EFAULT |
bad address in str. |
||
|
EINVAL |
str contains either invalid characters or an invalid Roman numeral. |
EXAMPLES
int num;
num =
roman2int("MCMXCVII");
if (num == −1)
perror("roman2int");
else
printf("MCMXCVII == %i\n", num);
AUTHOR
Written by David M. Syzdek.
REPORTING BUGS
Report bugs to <syzdek@users.sourceforge.net>.
COPYRIGHT
Copyright (C)
2007 David M. Syzdek.
This is free software; see the source for copying
conditions. There is NO warranty; not even for
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
SEE ALSO
roman(7), romandate(1), romannum(1), int2roman(3), roman_ctime(3), roman_strftime(3)