added loan struct to abstract over loan types

1 files changed, 48 insertions, 0 deletions

diff --git a/loans.c b/loans.c
new file mode 100644
index 0000000..f812aaf
--- /dev/null
+++ b/loans.c
@@ -0,0 +1,48 @@
+#include "loans.h"
+#include "stdio.h"
+
+loan loan_init(loan_type type, int n, int d, float r, float P) {
+	loan ret;
+	ret.type = type;
+
+	switch (type) {
+	case BULLET:
+		ret.c = bullet_init(n, d, r, P);
+		break;
+	case STRAIGHTLINE:
+		ret.c = sl_init(n, d, r, P);
+		break;
+	case MORTGAGE:
+		ret.c = mort_init(n, d, r, P);
+		break;
+	}
+
+	return ret;
+}
+
+float loan_update(loan l) {
+	switch (l.type) {
+	case BULLET:
+		return bullet_update(l.c);
+	case STRAIGHTLINE:
+		return sl_update(l.c);
+	case MORTGAGE:
+		return mort_update(l.c);
+	}
+	perror("Unkown Loan type supplied!");
+	exit(EXIT_FAILURE);
+}
+
+void loan_free(loan l) {
+	switch (l.type) {
+	case BULLET:
+		bullet_free(l.c);
+		break;
+	case STRAIGHTLINE:
+		sl_free(l.c);
+		break;
+	case MORTGAGE:
+		mort_free(l.c);
+		break;
+	}
+}