Function FormatNumber

src/strings.cpp:482–508

* Format a number into a string. * @param builder the string builder to write to * @param number the number to write down * @param separator the thousands-separator to use */

 * @param separator the thousands-separator to use
 */
static void FormatNumber(StringBuilder &builder, int64_t number, std::string_view separator)
{
	static const int max_digits = 20;
	uint64_t divisor = 10000000000000000000ULL;
	int thousands_offset = (max_digits - 1) % 3;

	if (number < 0) {
		builder.PutChar('-');
		number = -number;
	}

	uint64_t num = number;
	uint64_t tot = 0;
	for (int i = 0; i < max_digits; i++) {
		uint64_t quot = 0;
		if (num >= divisor) {
			quot = num / divisor;
			num = num % divisor;
		}
		if ((tot |= quot) || i == max_digits - 1) {
			builder.PutChar('0' + quot); // quot is a single digit
			if ((i % 3) == thousands_offset && i < max_digits - 1) builder += separator;
		}

		divisor /= 10;
	}
}

static void FormatCommaNumber(StringBuilder &builder, int64_t number)
{