const char *sistr[] = { "", "k", "M", "G", "T", "P" };
const char *iecstr[] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" };
const char **unitprefix;
- const char *unitstr[] = { "", "/s", "B", "bit", "B/s", "bit/s" };
+ static const char *const unitstr[] = {
+ [N2S_NONE] = "",
+ [N2S_PERSEC] = "/s",
+ [N2S_BYTE] = "B",
+ [N2S_BIT] = "bit",
+ [N2S_BYTEPERSEC]= "B/s",
+ [N2S_BITPERSEC] = "bit/s"
+ };
const unsigned int thousand[] = { 1000, 1024 };
unsigned int modulo;
- int unit_index = 0, post_index, carry = 0;
+ int post_index, carry = 0;
char tmp[32], fmt[32];
char *buf;
compiletime_assert(sizeof(sistr) == sizeof(iecstr), "unit prefix arrays must be identical sizes");
+ assert(units < ARRAY_SIZE(unitstr));
buf = malloc(128);
if (!buf)
case N2S_NONE:
break;
case N2S_PERSEC:
- unit_index = 1;
break;
case N2S_BYTE:
- unit_index = 2;
break;
case N2S_BIT:
- unit_index = 3;
num *= 8;
break;
case N2S_BYTEPERSEC:
- unit_index = 4;
break;
case N2S_BITPERSEC:
- unit_index = 5;
num *= 8;
break;
}
post_index = 0;
sprintf(buf, "%llu%s%s", (unsigned long long) num,
- unitprefix[post_index], unitstr[unit_index]);
+ unitprefix[post_index], unitstr[units]);
return buf;
}
sprintf(tmp, fmt, (double)modulo / (double)thousand[!!pow2]);
sprintf(buf, "%llu.%s%s%s", (unsigned long long) num, &tmp[2],
- unitprefix[post_index], unitstr[unit_index]);
+ unitprefix[post_index], unitstr[units]);
return buf;
}