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From: aed@netcom.COM (Andrew Davidson)
Newsgroups: comp.lang.c++
Subject: trouble switching from g++ 1.37 to sun's c++
Message-ID: <1991Apr3.210509.19432@netcom.COM>
Date: 3 Apr 91 21:05:09 GMT
Organization: Netcom - Online Communication Services  UNIX System {408 241-9760 guest}
Lines: 92


Hi

For some unkown reason I get the following errors when trying to
compile
the following code using Sun's C++ compiler. I am using sunos 4.1 and
motif
1.1.1. The really strange part is that this code compiles with out any
warnings
and runs correctly when I use g++ 1.37.

Thanks in Advance Andy

CC -c -g -I../../libxs main.cc
CC  +g main.cc:
"main.cc", line 28: error: unexpected  1 argument for XtInitialize()
"main.cc", line 34: error: unexpected  1 argument for
XtCreateManagedWidget()
"main.cc", line 35: error: unexpected  1 argument for XtAddCallback()
"main.cc", line 37: error: unexpected  1 argument for
XtRealizeWidget()

-----------------------  code --------------------------------
#include <math.h>
#include <iostream.h>
#include <X11/StringDefs.h>
#include <X11/Intrinsic.h>
#include <Xm/Xm.h>
#include <Xm/PushB.h>
#include <Xm/Label.h>

void DoLotsOfWork(Widget w, caddr_t junk, XmPushButtonCallbackStruct
*callData);

int main( int argc, char *argv[])
{
  Widget toplevel, button;

  toplevel = XtInitialize(argv[0], "BadClient", 0, 0, &argc, argv); //
28

  Arg wargs[10];
  int n = 0;
  XmString label = XmStringCreate("Do Lots of WORK!",
XmSTRING_DEFAULT_CHARSET);
  XtSetArg(wargs[n], XmNlabelString, label); n++;
  button = XtCreateManagedWidget((String)"button",
xmPushButtonWidgetClass, toplevel, wargs, n); // 34
  XtAddCallback(button, XmNactivateCallback, DoLotsOfWork, NULL); //
35

  XtRealizeWidget(toplevel); // 37
  XtMainLoop();
}


Intrinsic.h defines

typedef char *String;
#define CONST const
typedef unsigned int    Cardinal;

extern Widget XtInitialize(
#if NeedFunctionPrototypes
    CONST String    /* name */,
    CONST String    /* class */,
    XrmOptionDescRec*   /* options */,
    Cardinal        /* num_options */,
    Cardinal*       /* argc */,
    char**      /* argv */
#endif
);


for line 34 I tried the following casts but had no luck

 toplevel = XtInitialize(
                         (String)argv[0],
                         (String)"BadClient",
                         (XrmOptionDescRec*)0,
                         (Cardinal)0,
                         (Cardinal *)&argc,
                         argv);

-- 
-----------------------------------------------------------------
                  "bede-bede-bede Thats all Folks"
				Porky Pig
Andy Davidson
Woodside CA.
aed@netcom.COM
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