6c7d87b460
- Fixed documentation mixing primitives git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@973 fdac6126-5c0c-442c-9429-916003d36597
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
#ifndef INT2ROMAN_HH
|
|
#define INT2ROMAN_HH
|
|
|
|
#include <string>
|
|
|
|
std::string int2roman( size_t decimal, size_t length = 30 )
|
|
{
|
|
assert( decimal > 0 && decimal < 1000 );
|
|
|
|
const size_t nrows = 4;
|
|
const size_t ncols = 4;
|
|
|
|
static size_t table_arabs[ nrows ][ ncols ] = { { 1000, 1000, 1000, 1000 },
|
|
{ 900, 500, 400, 100 },
|
|
{ 90, 50, 40, 10 },
|
|
{ 9, 5, 4, 1 } };
|
|
|
|
static const char *table_romans[ nrows ][ ncols ] = { { "M", "M", "M", "M" },
|
|
{ "CM", "D", "CD", "C" },
|
|
{ "XC", "L", "XL", "X" },
|
|
{ "IX", "V", "IV", "I" } };
|
|
|
|
size_t power; // power of ten
|
|
size_t index; // Indexes thru values to subtract
|
|
|
|
std::string roman = "";
|
|
roman.reserve(length);
|
|
|
|
for ( power = 0; power < nrows; power++ )
|
|
for ( index = 0; index < ncols; index++ )
|
|
while ( decimal >= table_arabs[ power ][ index ] )
|
|
{
|
|
roman += table_romans[ power ][ index ];
|
|
decimal -= table_arabs[ power ][ index ];
|
|
}
|
|
|
|
return roman;
|
|
}
|
|
|
|
#endif
|