Unterminated extern "C" bracketing

johnstrohm — Fri, 10 Apr 2015 15:33:52 GMT

When declaring things in a header file that must be visible/linkable from both C and C++, the standard technique is:

#ifdef __cplusplus

extern "C" {

#endif

/* declarations go here */

#ifdef __cplusplus

}

#endif

One occasionally sees an alternate form:

#if defined(__cplusplus)

extern "C" {

#endif

/* declarations go here */

#if defined(__cplusplus)

}

#endif

In the USB 5.0 stack, files fsl_usb_ehci_hal.h and fsl_usb_khci_hal.h contain the first (opening) block but never the second (closing) block. File fsl_usb_khci_hal.h contains it in two places. If those header files are ever imported by a C++ module, the compiler will be very unhappy.

Admittedly, these two headers will probably not see C++ usage any time soon.

Re: Unterminated extern "C" bracketing

Kan_Li — Mon, 13 Apr 2015 08:00:15 GMT

Hi John,

Thanks for your report! I have passed it to our USB stack team, and this would be fixed in the next release.

Best Regards,

Kan

topic Unterminated extern "C" bracketing in Kinetis Microcontrollers

Unterminated extern "C" bracketing

Re: Unterminated extern "C" bracketing