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Small refactoring of tbytevector.cpp

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This commit is contained in:
Tsuda kageyu 2013-04-16 14:35:47 +09:00
parent cc3dbd84ce
commit 0195eef865
1 changed files with 9 additions and 10 deletions
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19
taglib/toolkit/tbytevector.cpp
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@ -208,22 +208,21 @@ T toNumber(const ByteVector &v, bool mostSignificantByteFirst)
return 0;
}
const size_t size = sizeof(T);
if(v.size() >= size)
{
if(v.size() >= sizeof(T)) {
if(isLittleEndianSystem == mostSignificantByteFirst)
return byteSwap<T>(*reinterpret_cast<const T*>(v.data()));
else
return *reinterpret_cast<const T*>(v.data());
}
else {
T sum = 0;
for(size_t i = 0; i < v.size(); i++) {
const size_t shift = (mostSignificantByteFirst ? v.size() - 1 - i : i) * 8;
sum |= static_cast<T>(static_cast<uchar>(v[i]) << shift);
}
const uint last = std::min<uint>(v.size() - 1, size);
T sum = 0;
for(uint i = 0; i <= last; i++)
sum |= (T) uchar(v[i]) << ((mostSignificantByteFirst ? last - i : i) * 8);
return sum;
return sum;
}
}
template <class T>