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Compiler Warning (level 4) C4214

Error Message

nonstandard extension used : bit field types other than int

With the default Microsoft extensions (/Ze), bitfield structure members can be of any integer type.


// C4214.c
// compile with: /W4
struct bitfields
   unsigned short j:4;  // C4214

int main()

Such bit fields are invalid under ANSI compatibility (/Za).