_z33 wrote: > > Functions are only "jump" labels. Thou you cant expect a program to work > > if you cross typecast functions with different argument (or return) > > values. This because the function expects arguments to be in "right" > > register or stack position. And caller expects return values to be in > > right register. > > > > // Jarmo > > excerpt from a discussion here @ > > ... > ANSI Classic section 3.3.4, page 47 lines 4 to 5: "A pointer to a > function of one type may be converted to a pointer to a function of another > type and back again; the result shall compare equal to the original > pointer." > ... > > > Seems to confuse me a lot. I didn't understand the ABC's of the > quoted discussion; nevertheless, this line there in the discussion, > still stings me :( > What does it mean?
All it really means is that all function pointers are the same size regardless of their type. > First of all, why should be function pointers be typecasted to > something else? Storage. You might want to store pointers to different types of functions in a common variable or structure field. -- Glynn Clements <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
