From f627f77f23d1497c9e1f4269b5c8812d12b42f18 Mon Sep 17 00:00:00 2001 From: Igor Pashev Date: Mon, 28 Jan 2013 19:02:21 +0000 Subject: Imported Upstream version 9.5.0 --- ipl/packs/loadfuncpp/doc/generator.cpp | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 ipl/packs/loadfuncpp/doc/generator.cpp (limited to 'ipl/packs/loadfuncpp/doc/generator.cpp') diff --git a/ipl/packs/loadfuncpp/doc/generator.cpp b/ipl/packs/loadfuncpp/doc/generator.cpp new file mode 100644 index 0000000..5f99158 --- /dev/null +++ b/ipl/packs/loadfuncpp/doc/generator.cpp @@ -0,0 +1,31 @@ + +/* Example of a C++ extension to icon via loadfunc, + * without garbage collection difficulties. + * Type 'make iexample' to build. + * Carl Sturtivant, 2008/3/16 + */ + +#include "loadfuncpp.h" +using namespace Icon; + +class sequence: public generator { + safe current, inc; + public: + sequence(safe start, safe increment) { + current = start - increment; + inc = increment; + } + virtual bool hasNext() { + return true; + } + virtual value giveNext() { + return current = current + inc; + } +}; + +extern "C" int seq2(value argv[]){ + sequence seq(argv[1], argv[2]); + return seq.generate(argv); +} + + -- cgit v1.2.3