Compiler Warning (level 1) C4533

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The latest version of this topic can be found at Compiler Warning (level 1) C4533.

initialization of 'variable' is skipped by 'instruction'

An instruction in your program changed the flow of control, such that, an instruction that initialized a variable was not executed. The following sample generates C4533:

// C4533.cpp  
// compile with: /W1  
#include <stdio.h>  
  
struct A  
{  
   int m_data;  
};  
  
int main()  
{  
   if (1)  
   {  
      goto Label;  
   }  
  
   A a = { 100 };  
  
   Label:   // C4533  
      printf("\n%d", a.m_data);   // prints an uninitialized value  
}