uint256: replace sprintf with HexStr and reverse-iterator
Instead of calling sprintf for every byte, format the hex bytes ourselves by help of HexStr and a reverse_iterator.
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1 changed files with 1 additions and 4 deletions
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@ -20,10 +20,7 @@ base_blob<BITS>::base_blob(const std::vector<unsigned char>& vch)
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template <unsigned int BITS>
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std::string base_blob<BITS>::GetHex() const
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{
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char psz[sizeof(data) * 2 + 1];
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for (unsigned int i = 0; i < sizeof(data); i++)
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sprintf(psz + i * 2, "%02x", data[sizeof(data) - i - 1]);
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return std::string(psz, psz + sizeof(data) * 2);
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return HexStr(std::reverse_iterator<const uint8_t*>(data + sizeof(data)), std::reverse_iterator<const uint8_t*>(data));
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}
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template <unsigned int BITS>
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