4.3BSD-Reno/share/man/cat3/valloc.0

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VALLOC(3C)		      1986		       VALLOC(3C)



NNAAMMEE
     valloc - aligned memory allocator

SSYYNNOOPPSSIISS
     cchhaarr **vvaalllloocc((ssiizzee))
     uunnssiiggnneedd ssiizzee;;

DDEESSCCRRIIPPTTIIOONN
     VVaalllloocc iiss oobbssoolleetteedd bbyy tthhee ccuurrrreenntt vveerrssiioonn ooff mmaalllloocc,, wwhhiicchh
     aalliiggnnss ppaaggee--ssiizzeedd aanndd llaarrggeerr aallllooccaattiioonnss..

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

DDIIAAGGNNOOSSTTIICCSS
     _V_a_l_l_o_c 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.

BBUUGGSS
     _V_f_r_e_e isn't implemented.
































Printed 7/27/90                May				1