Sha256: 8d5a9a5b0e405979687fc3407e3a7a9a6cf7f56c1dba74581dbed77e9616bc39
Contents?: true
Size: 897 Bytes
Versions: 115
Compression:
Stored size: 897 Bytes
Contents
#include "roman_numerals.h"
#include <stdlib.h>
#include <string.h>
#define NUM_OF_ELEMENTS(a) (sizeof(a) / sizeof(a[0]))
#define MAX_NUMERAL_LENGTH (7)
typedef struct {
char *numeral;
unsigned int value;
} numeral_values_t;
const numeral_values_t numeral_values[] = {
{"M", 1000},
{"CM", 900},
{"D", 500},
{"CD", 400},
{"C", 100},
{"XC", 90},
{"L", 50},
{"XL", 40},
{"X", 10},
{"IX", 9},
{"V", 5},
{"IV", 4},
{"I", 1}
};
char *to_roman_numeral(unsigned int number)
{
char *numerals = calloc(0, sizeof(char) * MAX_NUMERAL_LENGTH);
for (size_t i = 0; i < NUM_OF_ELEMENTS(numeral_values); i++) {
while (number >= numeral_values[i].value) {
strncat(numerals, numeral_values[i].numeral,
MAX_NUMERAL_LENGTH - strlen(numerals));
number -= numeral_values[i].value;
}
}
return numerals;
}
Version data entries
115 entries across 115 versions & 1 rubygems