8 * If logging output to a file, stderr should go to both stderr and f_err
10 #define log_err(args...) do { \
11 fprintf(f_err, ##args); \
12 if (f_err != stderr) \
13 fprintf(stderr, ##args); \
16 #define log_info(args...) fprintf(f_out, ##args)
18 FILE *get_f_out(void);
19 FILE *get_f_err(void);