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uint256: replace sprintf with HexStr and reverse-iterator

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Instead of calling sprintf for every byte, format the hex bytes
ourselves by help of HexStr and a reverse_iterator.
This commit is contained in:
Wladimir J. van der Laan 2017-02-27 07:43:37 +01:00
parent 6206252e50
commit 0a177148e7
1 changed files with 1 additions and 4 deletions
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5
src/uint256.cpp
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@ -20,10 +20,7 @@ base_blob<BITS>::base_blob(const std::vector<unsigned char>& vch)
template <unsigned int BITS>
std::string base_blob<BITS>::GetHex() const
{
char psz[sizeof(data) * 2 + 1];
for (unsigned int i = 0; i < sizeof(data); i++)
sprintf(psz + i * 2, "%02x", data[sizeof(data) - i - 1]);
return std::string(psz, psz + sizeof(data) * 2);
return HexStr(std::reverse_iterator<const uint8_t*>(data + sizeof(data)), std::reverse_iterator<const uint8_t*>(data));
}
template <unsigned int BITS>