Generic Pointers Code Examples

• How do I utilize generic pointers (void pointers) in NECTO IDE?

/* Project name:
 *   How do I utilize generic pointers in NECTO IDE?
 * Copyright:
 *   (c) MIKROE, 2024.
 * Description:
 *   - Example is meant for demonstrating void pointer
 *     (`void *` or generic pointer) functionality using mikroSDK 2.0.
 * Library dependencies?
 *   - Make sure `Board` and `Driver.GPIO.Port` libraries are enabled
 *     in NECTO's Library Manager to ensure a successful build.
 * How to test this code example?
 *   - Run debug Mode (F9 on your keyboard);
 *   - Analyze the usage of mikroSDK's implementation of
 *     void pointer (and subsequent type casting which is obligatory).
 */
 // ------------------------------------------------------------------ INCLUDES
/**
 * Any initialization code needed for MCU to function properly.
 * Do not remove this line or clock might not be set correctly.
 */
#ifdef PREINIT_SUPPORTED
#include "preinit.h"
#endif

#include "board.h"
#include "generic_pointer.h"

// ----------------------------------------------------------------- USER CODE
// Function that works with a generic pointer to read sensor data
void read_sensor_data(uint8_t * __generic_ptr sensor_data, size_t data_size) {
    // Cast the generic pointer to byte array
    uint8_t* data = (uint8_t*)sensor_data;

    // Simulate reading from a sensor and populating data
    for (size_t i = 0; i < data_size; i++) {
        data[i] = i * 2;  // Example: populating data with dummy values
    }
}

// Function to process sensor data (flexible with different sensor data types)
void process_sensor_data(void* __generic_ptr data, size_t data_size) {
    // Example: process data (cast to uint8_t* for byte-by-byte processing)
    uint8_t* byte_data = (uint8_t*)data;
    printf_me("Processing sensor data:\n");
    for (size_t i = 0; i < data_size; i++) {
        printf_me("Data[%u] = %d\n", i, byte_data[i]);
    }
}

int main(void)
{
    /* Do not remove this line or clock might not be set correctly. */
    #ifdef PREINIT_SUPPORTED
    preinit();
    #endif

    uint8_t sensor_data[10];  // Example sensor data array
    size_t data_size = sizeof(sensor_data);

    // Read and process sensor data using generic pointers
    read_sensor_data(sensor_data, data_size);
    process_sensor_data(sensor_data, data_size);

    return 0;
}

// ----------------------------------------------------------------------- END