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Compiler Error C2390

'identifier' : incorrect storage class 'specifier'

The storage class is not valid for the global-scope identifier. The default storage class is used in place of the invalid class.

Possible resolutions:

  • If the identifier is a function, declare it with extern storage.

  • If the identifier is a formal parameter or local variable, declare it with auto storage.

  • If the identifier is a global variable, declare it with no storage class (auto storage).

  • The following sample generates C2390:

// C2390.cpp
register int i;   // C2390

int main() {
   register int j;   // OK
}
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