Thread: Is there anything wrong with doing this?

I am trying to output a structure with 256 (0 - 255) records to a file. Then, load them when needed. I am telling fread to read to and write from one large structure, and I'm assuming that they will always be next to each other in memory. See how I did it below... Is this the correct way to do this, I mean, is it ok to assume that all the 256 structure records will be placed side by side, every time?

Code:

struct devDevice {
	char Name[16];
	unsigned char Code;
	unsigned char Type;
	unsigned char Zone;
	unsigned char Status;
};

struct devDevice devX10[256];

Code:

void saveAll(void) {

FILE* WriteFile;
WriteFile=fopen("devices.dat", "wb");

if(WriteFile!=NULL) {
	fwrite(&devX10[0x00], sizeof(struct devDevice), 256, WriteFile);
	fclose(WriteFile);
} else {
	LogIt("MAIN >> Device write error");
}
LogIt("MAIN >> Cfg file saved");
}

Code:

void readAll(void) {

FILE* ReadFile;
ReadFile=fopen("devices.dat", "rb");

if(ReadFile!=NULL) {
	fread(&devX10[0x00], sizeof(struct devDevice), 256, ReadFile);
	fclose(ReadFile);
} else {
	LogIt("MAIN >> Device read error");
}
LogIt("MAIN >> Cfg file loaded");
}

Thanks,

Jon Scott