}
const char *
-fmt_scaled(size_t bytes)
+fmt_human(size_t num, int base)
{
- unsigned int i;
- float scaled;
- const char *units[] = { "B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB",
- "ZiB", "YiB" };
-
- scaled = bytes;
- for (i = 0; i < LEN(units) && scaled >= 1024; i++) {
- scaled /= 1024.0;
+ double scaled;
+ size_t i, prefixlen;
+ const char **prefix;
+ const char *prefix_1000[] = { "", "k", "M", "G", "T", "P", "E", "Z", "Y" };
+ const char *prefix_1024[] = { "", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei",
+ "Zi", "Yi" };
+
+ switch (base) {
+ case 1000:
+ prefix = prefix_1000;
+ prefixlen = LEN(prefix_1000);
+ break;
+ case 1024:
+ prefix = prefix_1024;
+ prefixlen = LEN(prefix_1024);
+ break;
+ default:
+ warn("fmt_human: Invalid base");
+ return NULL;
}
- return bprintf("%.1f%s", scaled, units[i]);
+ scaled = num;
+ for (i = 0; i < prefixlen && scaled >= base; i++) {
+ scaled /= base;
+ }
+
+ return bprintf("%.1f%s", scaled, prefix[i]);
}
int