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Compiler Error C2105

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'operator' needs l-value

The operator must have an l-value as operand.

The following sample generates C2105:

// C2105.cpp
int main() {
   unsigned char * p1 = 0;
   unsigned int * p2 = (unsigned int *)p1;
   p2++;

   unsigned int * p = 0;
   p++;   // ok

   p2 = (unsigned int *)p1;
   ((unsigned int *)p1)++;   // C2105
}

The following sample generates C2105:

// C2105b.cpp
int main() {
   int a[10] = {0};
   int b[10] = {0};
   ++(a , b);   // C2105

   // OK
   ++(a[0] , b[0]);
   ++a[0];
}