1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
#include <OpenMesh/Core/System/config.hh>
#if defined(OM_CC_MIPS)
# include <assert.h>
#else
# include <cassert>
#endif
#include "int2roman.hh"
std::string int2roman( size_t decimal, size_t length )
{
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 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;
}
|
