ex17.c

[r3verser]

Tried this lesson, but got error. Have retyped it from book, but same thing happens! Could somebody help me with it?:zipper_mouth_face: Im on Windows.

app.exe db.dat c

Creates file db.dat 101kb size

app.exe db.dat s 1 zed zed@zedshaw.com

Fires
ERROR: Failed to load database.

Debugger said it happends at fread(), it returns 0 somehow

int rc = fread(conn->db, sizeof(struct Database), 1, conn->file);

void Database_load(struct Connection* conn)
{
	int rc = fread(conn->db, sizeof(struct Database), 1, conn->file);
	if (rc != 1)
		die("Failed to load database.");
}

[r3verser]

For posterity

The problem was in Database_open()
On Windows when opening file in binary mode we should provide not 'r+' but 'rb+', like so:

conn->file = fopen(filename, "rb+");

[shaneu]

I'm having the same issue on fedora linux, but the rb+ didn't help

[thegoodtheorist]

There is no such mode as b+ afaik.
Try to r+b instead:
conn->file = fopen(filename, "r+b");

[peter-chineham]

For posterity

The problem was in Database_open() On Windows when opening file in binary mode we should provide not 'r+' but 'rb+', like so:

conn->file = fopen(filename, "rb+");

In Debian, fopen works as in the original source. On Windows VS and MSDOS (GNU) I need rb+ as stated for it to work.