Added logger_open().

modsim/ass3/logger.h

@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <errno.h>
 
+void logger_open(const char* filename);
 void logger(double t, int N, double *y);
 void logger_close();
 

modsim/ass3/main.c

@@ -33,15 +33,15 @@ int main(int argc, char **argv) {
 
     switch( atoi(argv[1]) ) {
         case 0:
-            logfile = fopen("report/osc_euler", "w");
+            logger_open("report/osc_euler");
             puts("Integrating Euler method...");
             INTEGRATE(Euler, .0, 40.0, COMPARE_DT, 2, osc);
             logger_close();
-            logfile = fopen("report/osc_rk2", "w");
+            logger_open("report/osc_rk2");
             puts("Integrating Runge-Kutta 2 method...");
             INTEGRATE(RungeKutta2, .0, 40.0, COMPARE_DT, 2, osc);
             logger_close();
-            logfile = fopen("report/osc_rk4", "w");
+            logger_open("report/osc_rk4");
             puts("Integrating Runge-Kutta 4 method...");
             INTEGRATE(RungeKutta4, .0, 40.0, COMPARE_DT, 2, osc);
         break;