The following feature is enabled by default at all language levels.
| Language feature | Discussed in: |
|---|---|
| #include_next preprocessor directive | The #include_next directive |
The following features are enabled by default when you compile with the LANGLVL(*EXTENDED) option, which is the default language level. For more information, see the LANGLVL option in the ILE C/C++ Compiler Reference.
| Language feature | Discussed in: |
|---|---|
| __alignof__ operator | The __alignof__ operator |
| __typeof__ operator | The __typeof__ operator |
| Dollar signs in identifiers | Characters in identifiers |
| The __thread storage class specifier | The __thread storage class specifier |
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