On 24/06/2009, at 12:23 PM, Erick Tryzelaar wrote: > On Tue, Jun 23, 2009 at 7:16 PM, john > skaller<skal...@users.sourceforge.net> wrote: >> Some fun with varray tests, tried this: >> //// >> var b = varray[int] 20ul; >> println$ len b; >> >> iter println of (int) b; >> b+= 22; >> b+= 33; >> iter println of (int) b; >> >> c:= map (curry sub of (int * int) 100) b; >> println c; >> /// >> >> and it worked! >> >> varray(78, 67) > > Neat! I can't remember, do varray's automatically grow?
using += grows the used size, up to the allocated maximum. After that I think C++ implementation throws an exception. To make one that grows like C++ vector, use something like: typedef rvarray = &varray; or a more OO version of this: typedef rvarray = & &varray; and then reallocate the varray when it gets full. Ideally, on platforms like Linux, we'd use mmap() instead of malloc, and then extending a rvarray would not require copying anything (just change the address of the existing pages). However the implementation is a bit hairy and platform dependent. -- john skaller skal...@users.sourceforge.net ------------------------------------------------------------------------------ _______________________________________________ Felix-language mailing list Felix-language@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/felix-language
