27 lines
717 B
C++
27 lines
717 B
C++
#include <sstream>
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namespace waybar::util {
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std::string pow_format(unsigned long long value, const std::string &unit, bool binary = false) {
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auto base = binary ? 1024ull : 1000ull;
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const char* units[] = { "", "k", "M", "G", "T", "P", nullptr};
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auto fraction = (double) value;
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int pow;
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for (pow = 0; units[pow+1] != nullptr && fraction / base >= 2; ++pow) {
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fraction /= base;
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}
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std::ostringstream ss;
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if (pow > 0) {
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auto quotient = (unsigned long long) fraction;
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auto remainder = (unsigned long long) ((fraction - quotient) * 10);
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ss << quotient << "." << remainder << units[pow] << (binary ? "i" : "") << unit;
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} else {
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ss << value << unit;
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}
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return ss.str();
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};
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}
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