Re: Compiler error for "wrong" sized type

tedu <tu@xxxxxxxxxxxxx> wrote:
David White wrote:
Richard Heathfield wrote:
Well, I don't know about "better", but I like this:

char DetectWrongSize[(sizeof(struct my_struct) == correct_size) * 2 -
1];

If the struct is the wrong size, this will yield a negatively sized
array, which is illegal.

Thanks. That's an improvement. Unfortunately, our Hi-Tech compiler doesn't pick it up
because it treats an array size of -1 as unsigned!

does it allow multiple case statements with the same value?

switch (0) {
case sizeof(struct my_struct) == correct_size:
case 0:
}

Nit: a label reqires a following statement; make it:
switch (0) {
case sizeof(struct my_struct) == correct_size: ;
case 0: ;
}

(Otherwise it's a nice trick, I liked it.)

--
Stan Tobias
mailx `echo siXtY@xxxxxxxxxxxxxxxxxxxxxxxxxx | sed s/[[:upper:]]//g`
.

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