File content as of revision 172:65be27845400:

/* mbed Microcontroller Library
 * Copyright (c) 2006-2013 ARM Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef MBED_GPIO_OBJECT_H
#define MBED_GPIO_OBJECT_H

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    PinName pin;
} gpio_t;

static inline int gpio_is_connected(const gpio_t *obj)
{
    return obj->pin != (PinName)NC;
}

#ifdef __cplusplus
}
#endif

#endif