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Where possible use memset to default initialise types like byte/int/etc

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baldurk
2017-11-27 20:35:00 +00:00
parent 47bee80522
commit 7a11d1aa6b
1 changed files with 17 additions and 2 deletions
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renderdoc/api/replay/basic_types.h
+17 -2
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@@ -89,6 +89,22 @@ struct null_terminator<char>
inline static void fixup(char *elems, size_t count) { elems[count] = 0; }
};
template <typename T, bool isStd = std::is_standard_layout<T>::value>
struct ItemHelper
{
static void initRange(T *first, int32_t count)
{
for(int32_t i = 0; i < count; i++)
new(first + i) T();
}
};
template <typename T>
struct ItemHelper<T, true>
{
static void initRange(T *first, int32_t itemCount) { memset(first, 0, itemCount * sizeof(T)); }
};
template <typename T>
struct rdcarray
{
@@ -222,8 +238,7 @@ public:
setUsedCount((int32_t)s);
// default initialise the new elements
for(int32_t i = oldCount; i < usedCount; i++)
new(elems + i) T();
ItemHelper<T>::initRange(elems + oldCount, usedCount - oldCount);
}
else
{