gen/valloc.3

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  32 .\"     @(#)valloc.3    8.1 (Berkeley) 6/4/93
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  35 .Dd June 4, 1993
  36 .Dt VALLOC 3
  37 .Os
  38 .Sh NAME
  39 .Nm valloc
  40 .Nd aligned memory allocation function
  41 .Sh LIBRARY
  42 .Lb libc
  43 .Sh SYNOPSIS
  44 .In unistd.h
  45 .Ft void *
  46 .Fn valloc "size_t size"
  47 .Sh DESCRIPTION
  48 .Bf -symbolic
  49 The
  50 .Fn valloc
  51 function
  52 allocates
  53 .Fa size
  54 bytes aligned on a page boundary.
  55 It is implemented by calling
  56 .Xr malloc 3
  57 with a slightly larger request, saving the true beginning of the block
  58 allocated, and returning a properly aligned pointer.
  59 .Sh RETURN VALUES
  60 The
  61 .Fn valloc
  62 function returns
  63 a pointer to the allocated space if successful; otherwise
  64 a null pointer is returned
  65 .Sh HISTORY
  66 The
  67 .Fn valloc
  68 function appeared in
  69 .Bx 3.0 .
  70 .Sh BUGS
  71 A
  72 .Em vfree
  73 function
  74 has not been implemented.