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@(#)valloc.3 6.2 (Berkeley) 05/12/86

C 3 valloc - aligned memory allocator

 char *valloc(size)  unsigned size; 

Valloc is obsoleted by the current version of malloc, which aligns page-sized and larger allocations.

Valloc allocates size bytes aligned on a page boundary. It is implemented by calling malloc (3) with a slightly larger request, saving the true beginning of the block allocated, and returning a properly aligned pointer.

Valloc returns a null pointer (0) if there is no available memory or if the arena has been detectably corrupted by storing outside the bounds of a block. Vfree isn't implemented.