Hi,
I hope someone can help me. I have listed the Tools that I am using,
and code functions opening & closing Mathlib. I'm new to Palm
Programming and my first goal after the hello world program was to
create some very simple apps that take a few inputs, and calculate a
value. Things that are simple but useful, and build upon that.
Anyway, I muddled thru discovering mathlib, and finding out I needed to
update libgcc.a, etc, and finally got my program to open up, take my
inputs and generate the desired output. Now when I try to exit the
application I get the following error:
With 'MathLibClose(MathLibRef, usecount)' "Application" 1.0 has just
performed an illegal operation. It performed a "address error". If
this ....
With 'MathLibClose(MathLibRef, &usecount)'"Application" 1.0 has just
performed an illegal operation. It performed a "bus error". If this
...
If I comment out the above call, the error I get is for "Applications"
3.3, something about trying to access unallocated memory. I was
expecting some kind of error, since I had a connection opened up, that I
hadn't closed.
Anyway, I'm wondering if there is an obvious problem in my code that
someone might see, or if I need to make some additional modifications
with the new 3.5 SDK.
Sorry for all the bandwidth, I'm just trying to give as much info as to
my situation as I can think of, that might be useful.
Michael Gregoire
Tools:
PalmDev - SDK 3.5
PRC-Tools - 2.0
CYGWIN - b20
MathLib - Version 1.01, 23 August 1997, Rick Huebner
Start Code:
static int StartApplication(void)
{
int error;
/* Code to open a link to Math shared library in Palm */
error = SysLibFind(MathLibName, &MathLibRef);
if (error)
error = SysLibLoad(LibType, MathLibCreator, &MathLibRef);
ErrFatalDisplayIf(error, "Can't find MathLib"); // Just an example;
handle it gracefully
error = MathLibOpen(MathLibRef, MathLibVersion);
ErrFatalDisplayIf(error, "Can't open MathLib");
error = OpenDatabase();
if (error)
return error;
FrmGotoForm(formID_nav);
return 0;
}
StopCode:
static void StopApplication(void)
{
Err error;
UInt16 usecount = -1; /* Have also Tried UInt */
FldSetTextHandle(fieldptr_text, NULL);
FldSetTextHandle(fieldptr_hex, NULL);
FldSetTextHandle(fieldptr_out, NULL);
DmCloseDatabase(NavDB);
error = MathLibClose(MathLibRef, usecount); /** Getting Error Here,
with both
usecount and &usecount
**/
ErrFatalDisplayIf(error, "Can't close MathLib");
if (usecount == 0)
SysLibRemove(MathLibRef);
}
With 'MathLibClose(MathLibRef, usecount)' "Application" 1.0 has just
performed an illegal operation. It performed a "address error". If
this ....
With 'MathLibClose(MathLibRef, &usecount)'"Application" 1.0 has just
performed an illegal operation. It performed a "bus error". If this
...
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