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[ox/buffer] Add to to Ptr

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This commit is contained in:
Gary Talent 2018-05-02 21:11:00 -05:00
parent ad956ffd70
commit 6236214be6
1 changed files with 13 additions and 4 deletions
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17
deps/ox/src/ox/ptrarith/ptr.hpp vendored
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@ -17,6 +17,7 @@ class Ptr {
private: private:
uint8_t *m_dataStart = nullptr; uint8_t *m_dataStart = nullptr;
size_t m_dataSize = 0;
size_t m_itemOffset = 0; size_t m_itemOffset = 0;
size_t m_itemSize = 0; size_t m_itemSize = 0;
// this should be removed later on, but the excessive validation is // this should be removed later on, but the excessive validation is
@ -72,6 +73,9 @@ class Ptr {
template<typename SubT> template<typename SubT>
inline Ptr<SubT, size_t, sizeof(T)> subPtr(size_t offset); inline Ptr<SubT, size_t, sizeof(T)> subPtr(size_t offset);
template<typename SubT>
inline const Ptr<SubT, size_t, minOffset> to() const;
}; };
template<typename T, typename size_t, size_t minOffset> template<typename T, typename size_t, size_t minOffset>
@ -86,6 +90,7 @@ inline Ptr<T, size_t, minOffset>::Ptr(void *dataStart, size_t dataSize, size_t i
itemStart >= minOffset and itemStart >= minOffset and
itemStart + itemSize <= dataSize) { itemStart + itemSize <= dataSize) {
m_dataStart = reinterpret_cast<uint8_t*>(dataStart); m_dataStart = reinterpret_cast<uint8_t*>(dataStart);
m_dataSize = dataSize;
m_itemOffset = itemStart; m_itemOffset = itemStart;
m_itemSize = itemSize; m_itemSize = itemSize;
} }
@ -189,8 +194,7 @@ inline bool Ptr<T, size_t, minOffset>::operator!=(const Ptr<T, size_t, minOffset
template<typename T, typename size_t, size_t minOffset> template<typename T, typename size_t, size_t minOffset>
template<typename SubT> template<typename SubT>
inline const Ptr<SubT, size_t, sizeof(T)> Ptr<T, size_t, minOffset>::subPtr(size_t offset, size_t size) const { inline const Ptr<SubT, size_t, sizeof(T)> Ptr<T, size_t, minOffset>::subPtr(size_t offset, size_t size) const {
auto out = Ptr<SubT, size_t, sizeof(T)>(get(), this->size(), offset, size); return Ptr<SubT, size_t, sizeof(T)>(get(), this->size(), offset, size);
return out;
} }
template<typename T, typename size_t, size_t minOffset> template<typename T, typename size_t, size_t minOffset>
@ -203,8 +207,7 @@ inline const Ptr<SubT, size_t, sizeof(T)> Ptr<T, size_t, minOffset>::subPtr(size
template<typename T, typename size_t, size_t minOffset> template<typename T, typename size_t, size_t minOffset>
template<typename SubT> template<typename SubT>
inline Ptr<SubT, size_t, sizeof(T)> Ptr<T, size_t, minOffset>::subPtr(size_t offset, size_t size) { inline Ptr<SubT, size_t, sizeof(T)> Ptr<T, size_t, minOffset>::subPtr(size_t offset, size_t size) {
auto out = Ptr<SubT, size_t, sizeof(T)>(get(), this->size(), offset, size); return Ptr<SubT, size_t, sizeof(T)>(get(), this->size(), offset, size);
return out;
} }
template<typename T, typename size_t, size_t minOffset> template<typename T, typename size_t, size_t minOffset>
@ -214,4 +217,10 @@ inline Ptr<SubT, size_t, sizeof(T)> Ptr<T, size_t, minOffset>::subPtr(size_t off
return subPtr<SubT>(offset, m_itemSize - offset); return subPtr<SubT>(offset, m_itemSize - offset);
} }
template<typename T, typename size_t, size_t minOffset>
template<typename SubT>
inline const Ptr<SubT, size_t, minOffset> Ptr<T, size_t, minOffset>::to() const {
return Ptr<SubT, size_t, minOffset>(m_dataStart, m_dataSize, m_itemOffset, m_itemSize);
}
} }