Re: Basic c question again - type casting

Lim Hock-Chai wrote:

Thanks Barbara. I simplified my function to make it easier for me to
ask the question. The actual function prototype looks like below:

typedef char *logECD_STP3_piModuleName_T;

Ok, say you have this:

void fn(char *p);
typedef char *MyType;

void myFn()
{
MyType s;

fn( (char *) s;
}

Since MyType is actually char *, then the cast is _currently_ correct. But what if someone changes MyType to be say one of your varying-length structs? Now you are casting a varying-struct pointer to a char pointer. The compiler will be happy, but your code will not work.