Counting starts from 0 or 1?

[tovrstra]

When refering to array elements, e.g. an atom or a center index, we should decide that counting starts either from 0 (please) or 1 (noooo). Some is already mentioned here: Technical_Specifications.md

For example, it is relevant to #12.

[dgasmith]

Agreed, count from zero! I wonder how that translates to Fortran JSON parsers. @wadejong any comments?

[dgasmith]

@tovrstra Where do you think the best place to put this information is, in a FAQ?

[tovrstra]

Mentioning it in the FAQ is certainly helpful but we should probably also have a more formal definition of such rules. I'm not very familiar with JSON Schema. If we eventually write out such a schema, which would facilitate validation, it can also be fixed formally, see e.g. http://json-schema.org/examples.html

[cryos]

I think starting from 0 makes sense, JSON arrays generally do this. It should go in the FAQ.