alloca() can be useful in some (limited) circumstances.
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#ifndef _ALLOCA_H
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#define _ALLOCA_H
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/**
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* @file
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*
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* Temporary memory allocation
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*
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*/
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#include <stdint.h>
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/**
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* Allocate temporary memory from the stack
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*
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* @v size Size to allocate
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* @ret ptr Allocated memory
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*
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* This memory will be freed automatically when the containing
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* function returns. There are several caveats regarding use of
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* alloca(); use it only if you already know what they are.
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*/
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#define alloca(size) __builtin_alloca ( size )
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#endif /* _ALLOCA_H */
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