From: Peter Korn <###@###.###>
Subject: Sharing constants between Java and Windows
To: ###@###.###

Hi,

I want to define some constants (static finals) in Java that then, through
the magic of JNI, I can reference from my Windows native methods.

Fer instance, I have the file "blah.java":

  package foo.bar;

  class blah {
    static final long bleh = 1;
    public blah() {}
    public native void huh();
  }

which then results in the header file (through the magic of JNI)
foo_bar_blah.h:

  ...
  #ifdef __cplusplus
  extern "C" {
  #endif
  #undef foo_bar_blah_bleh
  #define foo_far_blah_bleh 1LL
  ...

So then I create my code blah.cpp, which wants to compare a jlong variable
to the constant:

  ...
  if (myJLongVar == (jlong) foo_far_blah_bleh) {
  ...

But I get a series of compile errors from MSDev 5.0:
  "error C2059: bad suffix on number"
  "error C2146: missing ')' before identifier 'L'"
  "error C2059: syntax error : ')'"
  "error C2065: 'L' : undeclared identifier"
  "error C2143: syntax error : missing ';' before '{'"

any ideas as to what I'm doing wrong? Is javah generating header files that
MSDev 5.0 can't parse? Are there compiler options I should be using to get
it to handle "#define foo_far_blah_bleh 1LL"?

Thanks,

Peter