static void print_type_size(Visitor *v, const char *name, uint64_t *obj, Error **errp) { StringOutputVisitor *sov = to_sov(v); static const char suffixes[] = { 'B', 'K', 'M', 'G', 'T', 'P', 'E' }; uint64_t div, val; char *out; int i; if (!sov->human) { out = g_strdup_printf("%"PRIu64, *obj); string_output_set(sov, out); return; } val = *obj; /* The exponent (returned in i) minus one gives us * floor(log2(val * 1024 / 1000). The correction makes us * switch to the higher power when the integer part is >= 1000. */ frexp(val / (1000.0 / 1024.0), &i); i = (i - 1) / 10; assert(i < ARRAY_SIZE(suffixes)); div = 1ULL << (i * 10); out = g_strdup_printf("%"PRIu64" (%0.3g %c%s)", val, (double)val/div, suffixes[i], i ? "iB" : ""); string_output_set(sov, out); }