Method formatNumberReadable

libsolutil/StringUtils.cpp:158–197

}

std::string solidity::util::formatNumberReadable(bigint const& _value, bool _useTruncation)
{
	bool const isNegative = _value < 0;
	bigint const absValue = isNegative ? (bigint(-1) * _value) : bigint(_value);
	std::string const sign = isNegative ? "-" : "";

	// smaller numbers return as decimal
	if (absValue <= 0x1000000)
		return sign + absValue.str();

	if (auto result = tryFormatPowerOfTwo(absValue))
		return {sign + *result};
	else if (auto result = tryFormatPowerOfTwo(absValue + 1))
		return {sign + *result + (isNegative ? " + 1" : " - 1")};

	std::string str = toHex(toCompactBigEndian(absValue), HexPrefix::Add, HexCase::Mixed);

	if (_useTruncation)
	{
		// return as interior-truncated hex.
		size_t len = str.size();

		if (len < 24)
			return sign + str;

		size_t const initialChars = 6;
		size_t const finalChars = 4;
		size_t numSkipped = len - initialChars - finalChars;

		return fmt::format(
			"{}{}...{{+{} more}}...{}",
			sign,
			str.substr(0, initialChars),
			numSkipped,
			str.substr(len-finalChars, len)
		);
	}

	return sign + str;
}

std::string solidity::util::prefixLines(
	std::string const& _input,