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August 10, 2011

Red/System v0.2.1 released

This new release is bringing a lot of important bug fixes and some new features for Red/System. The new PRINT function might break some existing scripts, but should be easily fixable.

New features
  • Variable-arguments function support
  • RTTI function limited support
  • Polymorphic and variadic PRINT function
  • Command-line arguments access
  • Added stack low-level manipulation native functions: push, pop
  • Access to stack pointer and stack frame pointer (reading/writing)
  • Subtracting two pointers is now possible
  • Preprocessor improved to solve macros recursively
  • New built-in hexdump debugging functions
  • External library access unit tests (thanks to Peter)
PRINT function examples:

print 123
123

print "hello"
hello

print [123 "hello"]
123hello

print [123 tab "hello" lf "world" lf]
123 hello
world

a: 1 < 2
b: "hello"
print [a tab b/2]
true e

Bugfixes
  • Complex arithmetic expressions involving pointers, path access and type casting are now much more reliable. 89 new unit tests were written to help fix the bugs and track regressions.

Specification document
  • Updated to match all new and changed features

Red runtime
  • Memory allocator implemented in Red/System, documentation is pending.

As you can see, no vacation this summer for Red project!