mjk@puffed.rice.edu (Mark J. Kilgard) (09/24/89)
The header for alloca, ie. /usr/lib/alloca.h reads as follows: /* @(#)alloca.h 1.3 88/02/07 SMI */ #if defined(sparc) # define alloca(x) __builtin_alloca(x) #endif Why? It seems very strange to me that alloca is implemented this way. Is Sun just trying to be annoying, or is there a purpose. alloca is in libc.a on a Sun3. In libc.a, alloca is no where to be found. But __builtin_alloca is. I had thought maybe alloca was implemented inline on a Sparc and maybe this was a some kind of justification but that doesn't seem to be the case. Mark Kilgard Rice University <mjk@rice.edu>
david@wubios.wustl.edu (David J. Camp) (09/28/89)
In article <1634@brazos.Rice.edu> mjk@puffed.rice.edu (Mark J. Kilgard) writes:
:X-Sun-Spots-Digest: Volume 8, Issue 131, message 7 of 11
:
:The header for alloca, ie. /usr/lib/alloca.h reads as follows:
:
:/* @(#)alloca.h 1.3 88/02/07 SMI */
:#if defined(sparc)
:# define alloca(x) __builtin_alloca(x)
^
Note that you must delete this space character for it to work! -David-
Bitnet: david@wubios.wustl ^ Mr. David J. Camp
Internet: david%wubios@wucs1.wustl.edu < * > Box 8067, Biostatistics
uucp: uunet!wucs1!wubios!david v 660 South Euclid
Washington University (314) 36-23635 Saint Louis, MO 63110ehrlich@cs.psu.edu (Daniel Ehrlich) (10/05/89)
In article <1841@brazos.Rice.edu> david@wubios.wustl.edu (David J. Camp) writes: In article <1634@brazos.Rice.edu> mjk@puffed.rice.edu (Mark J. Kilgard) writes: :X-Sun-Spots-Digest: Volume 8, Issue 131, message 7 of 11 : :The header for alloca, ie. /usr/lib/alloca.h reads as follows: : :/* @(#)alloca.h 1.3 88/02/07 SMI */ :#if defined(sparc) :# define alloca(x) __builtin_alloca(x) ^ Note that you must delete this space character for it to work! -David- I don't think so. The C preprocessor should still works with any amount of white space between the `#' and the preprocessor command. Dan Ehrlich <ehrlich@cs.psu.edu> | "A message is not a message until the The Pennsylvania State University | rules for interpreting it are in the Department of Computer Science | hands of the reciever." University Park, PA 16802 | --Apollo Belvedere Smith