/*
AUTORE: Manuel Vichi 3^AIN
Esercizio 7 File Binari
*/
#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>
using namespace std;
void fChangeEndianness(char * fileName) {
	FILE *file = fopen(fileName, "rb+");
    if (!file) {
        perror("Errore durante l'apertura del file di lettura/scrittura");
        return;
    }
    uint8_t buffer[4];
    long pos = 0;
    while (fread(buffer, 1, 4, file) == 4) {
        uint8_t tmp;
        tmp = buffer[0]; buffer[0] = buffer[3]; buffer[3] = tmp;
        tmp = buffer[1]; buffer[1] = buffer[2]; buffer[2] = tmp;
        fseek(file, pos, SEEK_SET);
        fwrite(buffer, 1, 4, file);
        pos += 4;
        fseek(file, pos, SEEK_SET);
    }
    fclose(file);
}
int main(void) {
	char file[] = "indiano.bin";
	fChangeEndianness(file);
	return 0;
}