The header file provides the following functionality:

Macros

void debugf(( const char *format, ... ));

Limitations

Due to the limited capabilities of the C preprocessor you have to enclose the arguments in double parenthesis.

The output string is limited to 4096 characters.

Missing

-

Additions

This header file and the functionality it provides is an extension.

Notes

This extension provides an easy way to send printf-style formatted messages using OutputDebugString, while allowing all code to be left out of a release build by defining NDEBUGF.

As an example, the following line in function foobar in the file foo.c at line 18:

    debugf(("length is %u", length));

could produce the following message:

    foo.c(18): foobar: length is 42