From eb1cc638ef7e5321a4b3149793c6011c0b2071ea Mon Sep 17 00:00:00 2001
From: zinee2 <jieunkim2@naver.com>
Date: Sat, 6 May 2017 16:28:15 +0900
Subject: [PATCH 1/3] pointer

---
 calc.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/calc.c b/calc.c
index 85f1466..edf6cbd 100644
--- a/calc.c
+++ b/calc.c
@@ -3,31 +3,32 @@
 
 int main(){
 	FILE *fp = NULL;
-	int operand1, operand2;
+	double  operand1, operand2;
 	char operator = ' ';
-	int result, line = 0;
+	double (* result)(double, double);
+	double line = 0;
 
 	fp = fopen("read.txt","r");
 	if(fp!=NULL){
-		fscanf(fp, "%d", &line);
+		fscanf(fp, "%lf", &line);
 	
 		for(int i=0; i<line; i++) {
-			fscanf(fp, "%d %c %d",&operand1, &operator, &operand2);
+			fscanf(fp, "%lf %c %lf",&operand1, &operator, &operand2);
 			switch(operator) {
 				case '+':
-				result = add(operand1, operator);
+				result = &add;
 				break;
 				case '-':
-				result = minus(operand1, operator);
+				result = &minus;
 				break;
 				case '*':
-				result = mul(operand1, operator);
+				result = %mul;
 				case '/':
-				result = div(operand1, operator);
+				result = &div;
 				break;
 			}		
-			printf("%d %c %d = %d\n",
-				 operand1, operator, operand2, result);
+			printf("%.0lf %c %.0kf = %.6lf\n",
+				 operand1, operator, operand2, result(operand1, operand2));
 		}
 	}
 	return 0;

From 3320f35410066096a761183480ee79df6f724781 Mon Sep 17 00:00:00 2001
From: zinee2 <jieunkim2@naver.com>
Date: Wed, 3 Aug 2016 14:51:24 -0700
Subject: [PATCH 2/3] lab14

---
 my          |  8 ++++++++
 my_fscanf.c | 15 +++++++++++++++
 my_fscanf.h |  8 ++++++++
 operators.c | 10 +++++-----
 operators.h |  8 ++++----
 5 files changed, 40 insertions(+), 9 deletions(-)
 create mode 100644 my
 create mode 100644 my_fscanf.c
 create mode 100644 my_fscanf.h

diff --git a/my b/my
new file mode 100644
index 0000000..e61c6a4
--- /dev/null
+++ b/my
@@ -0,0 +1,8 @@
+#ifndef MY_FSCANF_H
+#define MY_FSCANF_H
+#include <stdio.h>
+
+void my_scanf)FILE  *fp, const char *format, ..);
+
+#endif /* !MY_FSCANF_H */
+
diff --git a/my_fscanf.c b/my_fscanf.c
new file mode 100644
index 0000000..014db74
--- /dev/null
+++ b/my_fscanf.c
@@ -0,0 +1,15 @@
+#include "my_fscanf.h"
+#include <stdarg.h>
+#include <ctype.h>
+void my_fscanf(FILE *fp, const char *format, ...) {
+	va_list list;
+	va_start(list, format);
+	while(*format) {
+		if(*format == '%') {
+			format++;
+			switch(*format) {
+			}
+		}
+	}
+	va_end(list);
+}
diff --git a/my_fscanf.h b/my_fscanf.h
new file mode 100644
index 0000000..7c6bb21
--- /dev/null
+++ b/my_fscanf.h
@@ -0,0 +1,8 @@
+#ifndef MY_FSCANF_H
+#define MY_FSCANF_H
+#include <stdio.h>
+
+void my_fscanf(FILE *fp, const char *format, ...);
+
+#endif /* !MY_FSCANF_H*/
+
diff --git a/operators.c b/operators.c
index d51cb3e..34999cd 100644
--- a/operators.c
+++ b/operators.c
@@ -1,16 +1,16 @@
 #include "operators.h"
 
-int add(int op1, int op2) {
+double add(double op1, double op2) {
 	return op1+op2;
 }
-int minus(int op1, int op2) {
+double minus(double op1, double op2) {
 	return op1-op2;
 }
-int mul(int op1, int op2) {
+double mul(double op1, double op2) {
 	return op1*op2;
 }
 
-int div(int op1, int op2) {
-	return op1%op2;
+double div(double op1, double op2) {
+	return op1/op2;
 }
 
diff --git a/operators.h b/operators.h
index bd08f7d..0172ff3 100644
--- a/operators.h
+++ b/operators.h
@@ -1,4 +1,4 @@
-int add(int op1, int op2);
-int mul(int op1, int op2);
-int div(int op1, int op2);
-int minus(int op1, int op2);
+double add(double op1, double op2);
+double mul(double op1, double op2);
+double div(double op1, double op2);
+double minus(double op1, double op2);

From abb6c03d801eacb732db0caa179cfc63ed12b11f Mon Sep 17 00:00:00 2001
From: zinee2 <jieunkim2@naver.com>
Date: Wed, 3 Aug 2016 14:54:33 -0700
Subject: [PATCH 3/3] lab14

---
 my_fscanf.c | 1 +
 my_fscanf.h | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/my_fscanf.c b/my_fscanf.c
index 014db74..d978cdd 100644
--- a/my_fscanf.c
+++ b/my_fscanf.c
@@ -13,3 +13,4 @@ void my_fscanf(FILE *fp, const char *format, ...) {
 	}
 	va_end(list);
 }
+ 
diff --git a/my_fscanf.h b/my_fscanf.h
index 7c6bb21..100013e 100644
--- a/my_fscanf.h
+++ b/my_fscanf.h
@@ -1,7 +1,7 @@
 #ifndef MY_FSCANF_H
 #define MY_FSCANF_H
 #include <stdio.h>
-
+ 
 void my_fscanf(FILE *fp, const char *format, ...);
 
 #endif /* !MY_FSCANF_H*/