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ImVector: resize() / push_back() use memcpy() as we are not supposed to be constructor/destructor/operator aware at all. (If we do need to rework ImVector). In turn this will allow us to define assign/copy operators.

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This commit is contained in:
omar 2018-03-17 20:42:56 +01:00
parent d68be086b2
commit 4186c2c2b1
1 changed files with 2 additions and 2 deletions
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4
imgui.h
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@ -1155,7 +1155,7 @@ public:
inline int _grow_capacity(int sz) const { int new_capacity = Capacity ? (Capacity + Capacity/2) : 8; return new_capacity > sz ? new_capacity : sz; }
inline void resize(int new_size) { if (new_size > Capacity) reserve(_grow_capacity(new_size)); Size = new_size; }
inline void resize(int new_size,const value_type& v){ if (new_size > Capacity) reserve(_grow_capacity(new_size)); if (new_size > Size) for (int n = Size; n < new_size; n++) Data[n] = v; Size = new_size; }
inline void resize(int new_size,const value_type& v){ if (new_size > Capacity) reserve(_grow_capacity(new_size)); if (new_size > Size) for (int n = Size; n < new_size; n++) memcpy(&Data[n], &v, sizeof(v)); Size = new_size; }
inline void reserve(int new_capacity)
{
if (new_capacity <= Capacity)
@ -1169,7 +1169,7 @@ public:
}
// NB: &v cannot be pointing inside the ImVector Data itself! e.g. v.push_back(v[10]) is forbidden.
inline void push_back(const value_type& v) { if (Size == Capacity) reserve(_grow_capacity(Size + 1)); Data[Size++] = v; }
inline void push_back(const value_type& v) { if (Size == Capacity) reserve(_grow_capacity(Size + 1)); memcpy(&Data[Size], &v, sizeof(v)); Size++; }
inline void pop_back() { IM_ASSERT(Size > 0); Size--; }
inline void push_front(const value_type& v) { if (Size == 0) push_back(v); else insert(Data, v); }
inline iterator erase(const_iterator it) { IM_ASSERT(it >= Data && it < Data+Size); const ptrdiff_t off = it - Data; memmove(Data + off, Data + off + 1, ((size_t)Size - (size_t)off - 1) * sizeof(value_type)); Size--; return Data + off; }