Warning C6387
'argument' may be 'value': this does not adhere to the specification for the function 'function name': Lines: x, y
Remarks
This warning is raised if an annotated function parameter is being passed an unexpected value. For example, passing a potentially null value to a parameter that is marked with _In_
annotation generates this warning.
Code analysis name: INVALID_PARAM_VALUE_1
Example
The following code generates this warning because a null parameter is passed to f(char *)
:
#include <sal.h>
_Post_ _Null_ char * g();
void f(_In_ char *pch);
void main()
{
char *pCh = g();
f(pCh); // Warning C6387
}
To correct this warning, use the following code:
#include <sal.h>
_Post_ _Notnull_ char * g();
void f(_In_ char *pch);
void main()
{
char *pCh = g();
f(pCh);
}