strTst *pt = Sp1[0]; pt->s1; // is spst1.s1 pt->s2; // is spst1.s2 pt->s3; // is spst1.s3 pt = Sp1[1]; pt->s1; // is spst2.s1 pt->s2; // is spst2.s2 pt->s3; // is spst2.s3 // alternative strTst **ppt = Sp1; ppt[0]->s1; // is spst1.s1 ppt[0]->s2; // is spst1.s2 ppt[0]->s3; // is spst1.s3 ppt[1]->s1; // is spst2.s1 ppt[1]->s2; // is spst2.s2 ppt[1]->s3; // is spst2.s3

Since the tasks are not waiting on any object or variable, there will be no dead lock. I guess you do need to add if (rcvd == false) in task B before the line rcvd = true; «_Superman_»  _I love work. It gives me something to do between weekends. _Microsoft MVP (Visual C++) (October 2009 - September 2013) Polymorphism in C

That's a whole new question.

samzcs wrote: It works. It runs, which is a bit different. If the compiler changes in the future or the flow does then it might stop. Or it might cause problems in other places.

It's possible that the compiler patches the call with a default argument. What is the value in channel? I'm guessing it is 0. Anyway this is not valid in standard C and will surely not compile in GCC or Microsoft C compilers. «_Superman_»  _I love work. It gives me something to do between weekends. _Microsoft MVP (Visual C++) (October 2009 - September 2013) Polymorphism in C

Sure, should has a struct variable name.it's a typo.

Thanks, I understand it. Looked into V_ROM2_FAR V_ROM3, V_ROM2_FAR be defined as const, V_ROM3 blank

Thanks

See if this is of any help - Polymorphism in C[^] «_Superman_»  _I love work. It gives me something to do between weekends. _Microsoft MVP (Visual C++) (October 2009 - September 2013) Polymorphism in C