newlispfanclub.alh.net

What OS and newLISP are you using? Is your newLISP 32bit or 64bit and does it say "ffilib" in the banner? If it does not say "ffilib" in the banner, it is only compiled for the simple FFI which ignores type specs in the import statement. Only with "ffilib" in the banner it is compiled for the extended FFI described in the reference manual.

There are testcases for int sign extension in newlisp-x.x.x/util/ffitest.c and newlisp-x.x.x/qa-specific-tests/qa-libffi which do work on 32bit and 64bit Unix and 32bit Windows.

For non-blocking pipes try to create named pipes using open with the "non-block" option (only on Unix), then use peek, which will return nil on closed pipe handles.

int returnneg(void) is a valid prototype.It's actually "more correct" than int returnneg(): the former tells that the function takes no arguments, while the latter can take any number of arguments.

source: http://www.drdobbs.com/c-and-c-case-stu ... /184401562