Function transmission_sys::tr_error_prefix

pub unsafe extern "C" fn tr_error_prefix(
    error: *mut *mut tr_error,
    prefix_format: *const c_char,
     ...
)

@brief Prefix message of exising error object.

If passed pointer to error object is not NULL, prefix its message with printf-style formatted text. Otherwise, do nothing.

@param[in,out] error Pointer to error object to be set. @param[in] prefix_format Prefix format string. @param[in] … Format arguments.