tmp/tmpjbf2xkq3/{from.md → to.md}
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####
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``` cpp
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static int xalloc();
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```
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*Returns:* `index` `++`.
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*Remarks:* Concurrent access to this function by multiple threads
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not result in a data race
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``` cpp
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long& iword(int idx);
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```
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*Effects:* If `iarray` is a null pointer, allocates an array of `long`
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of unspecified size and stores a pointer to its first element in
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`iarray`. The function then extends the array pointed at by `iarray` as
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necessary to include the element `iarray[idx]`. Each newly allocated
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element of the array is initialized to zero. The reference returned is
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@@ -31,10 +33,12 @@ initialized to 0.
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``` cpp
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void*& pword(int idx);
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```
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*Effects:* If `parray` is a null pointer, allocates an array of pointers
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to `void` of unspecified size and stores a pointer to its first element
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in `parray`. The function then extends the array pointed at by `parray`
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as necessary to include the element `parray[idx]`. Each newly allocated
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element of the array is initialized to a null pointer. The reference
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#### Storage functions <a id="ios.base.storage">[[ios.base.storage]]</a>
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``` cpp
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static int xalloc();
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```
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*Returns:* `index` `++`.
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*Remarks:* Concurrent access to this function by multiple threads does
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not result in a data race [[intro.multithread]].
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``` cpp
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long& iword(int idx);
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```
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*Preconditions:* `idx` is a value obtained by a call to `xalloc`.
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+
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*Effects:* If `iarray` is a null pointer, allocates an array of `long`
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of unspecified size and stores a pointer to its first element in
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`iarray`. The function then extends the array pointed at by `iarray` as
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necessary to include the element `iarray[idx]`. Each newly allocated
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element of the array is initialized to zero. The reference returned is
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``` cpp
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void*& pword(int idx);
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```
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*Preconditions:* `idx` is a value obtained by a call to `xalloc`.
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+
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*Effects:* If `parray` is a null pointer, allocates an array of pointers
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to `void` of unspecified size and stores a pointer to its first element
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in `parray`. The function then extends the array pointed at by `parray`
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as necessary to include the element `parray[idx]`. Each newly allocated
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element of the array is initialized to a null pointer. The reference
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