Print a value to a file?

[Zata]

Hello,

I have this code:

BioAPI_FAR FARRequest=0;
BioAPI_BOOL bFARPrecedence=0;
BioAPI_INPUT_BIR inputProcessed;
BioAPI_FAR FARAchieved;
inputProcessed.Form = BioAPI_BIR_HANDLE_INPUT;
inputProcessed.InputBIR.BIRinBSP = &hProcessdBIR;

bioReturn = BioAPI_VerifyMatch(g_ModuleHandle,
&FARRequest,
NULL,
&bFARPrecedence,
&inputProcessed,
&g_inputStoredBir,
NULL,
&bResult,
&FARAchieved,
NULL,
NULL);

How can I print &FARAchieved to a file?
Or, printing the whole bioReturn would be fine too.

Thanks a lot!

[GNU-Fan]

with fprintf

[Zata]

with fprintf

Could you please be more specific?

[GNU-Fan]

Well, specifics would depend on what BioAPI_FAR precisely is.
Provided you are interested not in the address of the variable but in the value it has.

[Zata]

Well, specifics would depend on what BioAPI_FAR precisely is.
Provided you are interested not in the address of the variable but in the value it has.

Yes, I need the value.

This is what programmers documentation says:

BioAPI_FAR

A 32-bit integer value (N) that indicates a probable False Accept Rate of N/(231-1). The larger the value, the
worse the result.
typedef sint32 BioAPI_FAR, *BioAPI_FAR_PTR;
#define BioAPI_NOT_SET (-1)

NOTE: FAR is used within BioAPI as a means of setting thresholds and returning scores.
NOTE: The IRISPASS-M BioAPI Software Development Kit always sets 1790 to the value N. This means that FAR is 1 in 1.2 million. (The actual FAR varies for each verification or identification.

Any help would be really appreciated!

Thanks a lot.

[GNU-Fan]

Ok, so FARAchieved is a 32 bit signed integer, and &FARAchieved is a pointer of/to it.
This corresponds to the "%d" code in the fprintf and printf format.
printf [C++ Reference]

But for fprintf, you will also need a file handle of an open file.
fprintf [C++ Reference]

[Zata]

Thanks.

I tried this:

int myFAR = *FARAchieved;
FILE *out = fopen( "output.txt", "w" );
if( out != NULL )
fprintf( out, "%d\n", myFAR );

And I get "error C2100: illegal indirection" error

[GNU-Fan]

Because FARAchieved is not a pointer.

[Zata]

Because FARAchieved is not a pointer.

So how would I print it correctly?
Would this also automatically create the file?

Sorry, for such questions, I am new to programming.

Thanks a lot for your replies so far!