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Compiler Warning (level 2) C4302

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The latest version of this topic can be found at Compiler Warning (level 2) C4302.

conversion' : truncation from 'type 1' to 'type 2'

The compiler detected a conversion from a larger type to a smaller type. Information may be lost.

This warning is off by default. See Compiler Warnings That Are Off by Default for more information.

The following sample generates C4302:

// C4302.cpp  
// compile with: /W2  
#pragma warning(default : 4302)  
int main() {  
   int i;  
   char c = (char) &i;     // C4302  
   short s = (short) &i;   // C4302  
}