I am trying to use a snippet of code from a Apple programming guide, and I am getting a EXC_BAD_ACCESS when trying to pass a pointer to a function, right after doing a malloc.

(For Reference: iPhone Application Programming Guide: Event Handling - Listing 3-6)

The code in question is really simple:

CFMutableDictionaryRef touchBeginPoints;
UITouch *touch;

....

CGPoint *point = (CGPoint *)CFDictionaryGetValue(touchBeginPoints, touch);

if (point == NULL)
{
    point = (CGPoint *)malloc(sizeof(CGPoint));
    CFDictionarySetValue(touchBeginPoints, touch, point);
}

Now when the program goes into the if statement it assigns the 'output' of malloc into the point variable/pointer.

Then when it tries to pass point into the CFDictionarySetValue function it crashes the application with: Program received signal: “EXC_BAD_ACCESS”.

Someone suggested not doing the malloc and pass the point var/pointer as: &point, however that still gave me a EXC_BAD_ACCESS.

What I am (and it looks like Apple) doing wrong???

Thanks in advance.