...proposal is about localbuffers. Stephen RfD - Localbuffers, v4 ======================= Stephen Pelc -... with LocalsExt4.txt. 20070914 Split localbuffers to a separate proposal. ... a frequent need for temporary buffers. This proposal is an extension to the extended locals proposal, on which this proposal ... return stack (where the other locals live as well). It actually ...
...is about localbuffers. Stephen RfD - Localbuffers, v4 ======================= Stephen Pelc...the notation like this facility. Local arguments and values return their...13.6.2.xxxx { brace LOCAL EXT Interpretation: Interpretation semantics for...lvn" -- ) Create up to eight local arguments by repeatedly skipping leading...data stack. When invoked, each local argument will return its value...
... a Forth system could be extended to add generic hooks to the word exit. This would allow allocating "local" buffers with ALLOCATE, keeping them chained with some hidden pointers, so that they are all FREEd when the word exits. It seems simple enough to locally override EXIT and ; (the override for ; is needed because it adds an implicit...
... thinking about the allocation of, say, a 200 kB buffer. Page granularity is somewhat coarse, but it gets finer...> extended to add generic hooks to the word exit. This would allow allocating "local" buffers with ALLOCATE, keeping them chained with some hidden pointers, so that they are all ... the word exits. It seems simple enough to locally override EXIT and ; (the override for ; is...
... thinking about the allocation of, say, a 200 kB buffer. Page granularity is somewhat coarse, but it gets finer... be extended to add generic hooks to the word exit. This would allow allocating "local" buffers with ALLOCATE, keeping them chained with some hidden pointers, so that they are all ... the word exits. It seems simple enough to locally override EXIT and ; (the override for ; is needed...
...process accesses the page. If I allocate a large buffer but use only 10%% of it, then only these... consumed. No, that's wrong. For every 20 byte buffer for (say) a filename, you would be allocating MAXPATHLEN bytes...> of what happens to C). I agree with all of that. Here, variable-size localbuffers are added to the C language. If alloca() was widely implemented and used for that...
... If I allocate a large buffer but use only 10%% of ... world who used variable-size localbuffers had to call alloca... that everyone used variable-size localbuffers. Well, everyone who wanted ...to C++. Because when people want "localbuffers", they actually want...and would allow automatically-released buffers which would nonetheless be heap...to C). Here, variable-size localbuffers are added to the...
... you can just use a fixed-size buffer with that maximum size. And if you... least, everyone in the UNIX world -- used alloca() for variable-size localbuffers. Since I have programmed in the...the UNIX world who used variable-size localbuffers had to call alloca(). I ...to say that everyone used variable-size localbuffers. Not every task needs them. VLA is more or less equivalent ...
George Hubert <georgeahubert@yahoo.co.uk> writes: Are the addresses of localbuffers cell aligned Very good point. I suggest that they should be aligned for all purposes (if we had agreed on a struct package that provides information on the alignment of structures, we could have used that, but since we have not, we have to assume the worst). - ...
...stephen...@mpeforth.com (Stephen Pelc) wrote: Localbuffers are declared in the form...of the storage in address units. Local argument run-time: ( x1 ... xn --...run-time: ( -- ) Initialise up to eight local arguments from the data stack. ...the data stack. When invoked, each local argument will return its value.... are undefined. When invoked, each local value returns its value. The ...
