Subj : Re: Spider Monkey - 200/11 works, x=200/11 core dumps
To   : netscape.public.mozilla.jseng
From : pookiebearbottom@yahoo.com (Sally)
Date : Mon Nov 10 2003 10:10 pm

Brendan, the link you posted doesn't work on my end.

thanks
-sal

Brendan Eich <brendan@meer.net> wrote in message news:<3FB03962.3080600@meer.net>...
> Sally wrote:
> 
> >I am using the following code.  When ever I use basic math like
> >"200/11" the script works.  When I try to assign a variable, like
> >"x=200/11" I get a core dump.  Here is the code, any info would be
> >helpful.  I am somewhat new to spidermonkey, but been using javascript
> >for years (in case you are wondering, I am calling it from C++ and
> >that is why I wrote the wrappers like this).
> >  
> >
> 
> You're making the same mistake that was diagnosed in 
> news://news.mozilla.org:119/boiqeu$1ea52t$1@ID-3551.news.uni-berlin.de.
> 
> /be
> 
> >Thanks
> >-Sal
> >
> >void *p=initJS();  /* set up sm MY JS_RTStruct */
> >char r[1000]; /* result string */
> >runJSScript(p,"11/2",r);/* works */
> >runJSScript(p,"x=11/2",r);/* core dumps */
> >
> >typedef struct 
> >{
> >  JSContext *cx;
> >  JSObject *global;
> >  JSRuntime *rt;
> >} JS_RTStruct;
> >
> >
> >void *initJS()
> >{
> >  JS_RTStruct *ptr=(JS_RTStruct *)malloc(sizeof(JS_RTStruct));
> >  JSClass global_class=
> >  {
> >    "global",0,
> >    JS_PropertyStub,JS_PropertyStub,JS_PropertyStub,JS_PropertyStub,
> >    JS_EnumerateStub,JS_ResolveStub,JS_ConvertStub,JS_FinalizeStub
> >  };
> >
> >  ptr->rt = JS_NewRuntime(0x100000);
> >  ptr->cx = JS_NewContext(ptr->rt, 0x1000);
> >  ptr->global = JS_NewObject(ptr->cx, &global_class, NULL, NULL);
> >  JS_InitStandardClasses(ptr->cx, ptr->global);
> >
> >  return ptr;
> >}
> >
> >void runJSScript(void *p,char *script,char *result)
> >{
> >  JS_RTStruct *ptr=(JS_RTStruct *)p;
> >  jsval rval;
> >  JSString *str;
> >  int lineno=0;
> >  JSBool ok=JS_EvaluateScript(ptr->cx,ptr->global,script,
> >			      strlen(script),NULL,lineno,&rval);
> >  strcpy(result,JS_GetStringBytes(JS_ValueToString(ptr->cx, rval)));
> >}
> >  
> >

.