Compiler Error C2153

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hex constants must have at least one hex digit

Hexadecimal constants 0x, 0X, and \x are not valid. At least one hex digit must follow x or X.

The following sample generates C2153:

// C2153.cpp
int main() {
   int a= 0x;    // C2153
   int b= 0xA;   // OK
}