Saving data on RedPitaya and FILE type in C

[8lu3]

Hi,
I want to save data on the RedPitaya within a C program. /var/ seems to be read-write but isn't there a better location to save files to?
I also get some strange compiler-errors when I try to open a file:

Code: Select all

#include <stdio.h>
..

FILE *f;
f = fopen(dir, "w");

Compiling failes with following error message:

error: a label can only be part of a statement and a declaration is not a statement
FILE *f;
^

[Nils Roos]

Do you maybe have a colon instead of a semi-colon at the end of the previous line ?

[8lu3]

Ok thx. Indeed, the problem wasn't the statement itself, but that I tried to declare a variable within a switch-case block.