------- Comment #5 from paolo dot carlini at oracle dot com 2008-05-19 00:16 ------- And you are certainly wrong that the Standard allows to omit the definition, in this case. This is 9.4.2/4 oc C++03, note the last sentence:
If a static data member is of const integral or const enumeration type, its declaration in the class definition can specify aconstant-initializer which shall be an integral constant expression (5.19). In that case, the member can appear in integral constant expressions. The member shall still be defined in a name-space scope if it is used in the program and the namespace scope definition shall not contain aninitializer. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36261
