JAMES S HAINES wrote:
For some reason PODS 1.2 indicates an error via a red square in the upper
right hand corner of the editor whenever I try to release an unmovable chunk
of memory by MemPtrFree(p). Perhaps I'm using it incorrectly or perhaps a
bug in PODS?? I have included a function below as an example of where an
error occurs.
void calcPoint(double N, double E)
{
double Az,deg;
char *ptr, s[60];
double distance;
point.ptNum= (UInt16) StrAToI(fields[1]);
StrCopy(point.desc ,fields[2]);
DMSToDeg(fields[3],'-');
StringToDouble(fields[4], &distance);
Az=BearToAz( deg, quad);
point.northing = N + distance * cos( Az / DinR);
ptr = MemPtrNew(64);
if (ptr)
{
DoubleToString( ptr, point.northing, decimal );
FntSetFont( boldFont );
WinSetUnderlineMode( noUnderline);
WinSetTextColor(red);
WinDrawChars(ptr,StrLen(ptr),71,99);
point.easting = E + distance * sin( Az / DinR );
DoubleToString( ptr, point.easting, decimal );
WinDrawChars( ptr,StrLen(ptr),71,112 );
WinSetTextColor( black );
//MemPtrFree (ptr); // error is here
}
return;
}
When looking at that chunk of code, what I want to know is why it
doesn't have an error on the "ptr = MemPtrNew(64);" line earlier
than where you show it having an error.
The reason is MemPtrNew()'s return type should be a "void *", and
if so, the compile should take exception to your assigning it
to "ptr", which is a "char *". The fact that it doesn't complain
makes me wonder what's going on.
On possibility is that somehow you have an improper definition
of the "MemPtr" type. It should be a typedef to "void *" somewhere
(like in the SDK header files). The fact that it isn't is making
me wonder if perhaps you've accidentally defined MemPtr as something
else somewhere. Or if perhaps some other file has mistakenly
redefined (re-typedef-ed) MemPtr somewhere.
- Logan
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