Comment #2 on issue 419 by leehar...@gmail.com: enumerators have comma on last value
http://code.google.com/p/protobuf/issues/detail?id=419

The trailing comma at the end of an enumerator list was added in the C++11 standard. It is not in the C++03 standard. Is protobuf designed to only work with C++11?

From "7.2 Enumeration declarations" in ISO/IEC 14882:2003(E) (C++03):

enum-name:
    identifier

enum-specifier:
    "enum" identifier(opt) "{" enumerator-list(opt) "}"

enumerator-list:
    enumerator-definition
    enumerator-list "," enumerator-definition

enumerator-definition:
    enumerator
    enumerator "=" constant-expression

enumerator:
    identifier


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