* functions
*/
-void log_out_nn (FILE *fp, const char *fmt, ...);
-void log_info_nn (const char *fmt, ...);
-void log_error_nn (const char *fmt, ...);
+int log_out_nn (FILE *fp, const char *fmt, ...);
+int log_info_nn (const char *fmt, ...);
+int log_error_nn (const char *fmt, ...);
-void log_out (FILE *fp, const char *fmt, ...);
-void log_info (const char *fmt, ...);
-void log_error (const char *fmt, ...);
+int log_out (FILE *fp, const char *fmt, ...);
+int log_info (const char *fmt, ...);
+int log_error (const char *fmt, ...);
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#define MAX(a,b) (((a) > (b)) ? (a) : (b))