if I have the union in a struct as below
if i want to find the size of the variable value, do i do this?Code:typedef struct{ union{ uint8_t value; }u; }s;
does this return the size which is 1 byte?Code:s testStruct; sizeof(testStruct.u.value);
if I have the union in a struct as below
if i want to find the size of the variable value, do i do this?Code:typedef struct{ union{ uint8_t value; }u; }s;
does this return the size which is 1 byte?Code:s testStruct; sizeof(testStruct.u.value);
sizeof(testStruct.u.value) is equivalent to sizeof(uint8_t), because testStruct.u.value is of type uint8_t. You could have tested that (admittedly not definitively) using a compiler.
I see little point in having a struct containing a single union that has a single member, but that's another story.
Why didn't you just compile it and find out?Originally Posted by Edelweiss
Quzah.
Hope is the first step on the road to disappointment.
Well, y'know what... there is one quick and simple way to find that out...
Compile it and try it....
Oh, and I suppose next you are going to tell him to look it up in his helpfile.
Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.
