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Bug 1216040 - Make ArrayLength support mozilla::EnumeratedArray. r=froydnj

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This commit is contained in:
Cameron McCormack 2015-10-20 10:16:20 +11:00
parent 4fa140ec32
commit 8df7b927c3
1 changed files with 8 additions and 0 deletions
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8
mfbt/ArrayUtils.h
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@ -20,6 +20,7 @@
#include "mozilla/Alignment.h" #include "mozilla/Alignment.h"
#include "mozilla/Array.h" #include "mozilla/Array.h"
#include "mozilla/EnumeratedArray.h"
#include "mozilla/TypeTraits.h" #include "mozilla/TypeTraits.h"
namespace mozilla { namespace mozilla {
@ -64,6 +65,13 @@ ArrayLength(const Array<T, N>& aArr)
return N; return N;
} }
template<typename E, E N, typename T>
MOZ_CONSTEXPR size_t
ArrayLength(const EnumeratedArray<E, N, T>& aArr)
{
return size_t(N);
}
/* /*
* Compute the address one past the last element of a constant-length array. * Compute the address one past the last element of a constant-length array.
* *