On 05/25/2012 05:27 PM, Jason Merrill wrote: > On 05/25/2012 08:46 AM, Dominique Dhumieres wrote: >> I certainly prefer this alternative (the use of extern for that purpose >> being extremely confusing for a fortraner;-). However, if my test is valid, >> if N is not equal to 2 or 4, one gets the following error >> >> error: size of array 'l' is negative >> >> Would not it be better to have an explicit test of N being 2 or 4, and an >> error >> of the kind "the vector size has to be the size of 2 or 4 long" if not? > > There's no way to tell the compiler to emit that kind of error (in C; that's > what C++11 static_assert is for).
You can simply rename the 'l' array to the error you want to output, so you get an error like: error: size of array 'the_vector_size_has_to_be_the_size_of_2_or_4_long' is negative or whatever you want to say as error. -- Pedro Alves
