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C6518

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Note

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warning C6518: Invalid annotation: 'SAL_writableTo' property may not be specified as a precondition on buffers that are not writable: 'Param\(1)'

This warning indicates that a conflict exists between a SAL_writableTo property value and a writable property. This ordinarily indicates that a writable property does not have write access to the parameter being annotated.

Example

The following code generates this warning because the _Out_ annotation compiles to include a SAL_writableTo property, which does not allow write access:

#include <sal.h>  
void f(_Out_ const char* pc)  
{  
    //code that can't write to *pc ...  
}

To correct this warning, use the following code:

#include <sal.h>  
void f(_Out_  char* pc)  
{  
    pc = "Hello World";  
    //code ...  
}