Function double2str

ut.h:307–317

#define DOUBLE2STR_MAX_LEN  INT2STR_MAX_LEN
static inline char* double2str(double d, int* len)
{
	unsigned int buf;

	buf = getstrbufindex();
	*len = snprintf(int2str_buf[buf], INT2STR_MAX_LEN - 1, "%0.*lf",
	                FLOATING_POINT_PRECISION, d);
	int2str_buf[buf][*len] = '\0';

	return int2str_buf[buf];
}

#define BIGINT2STR_MAX_LEN  INT2STR_MAX_LEN
static inline char* bigint2str(long long l, int* len)