[201413108-김소희]Lab15

README.md

@@ -0,0 +1,16 @@
+# Simple Calculator
+
+This is a buggy application that will be used for Lab5 of 'Introduction to Open Source Software Development.'
+
+  - Fork the project.
+  - Create a topic branch from master. 
+  - The branch name must be your student id. (e.g. 201624000)
+  - Make some commits to improve the project.
+    - Fix the well-knwon bugs.
+    - Remove object and binary files.
+    - Add .gitignore file
+  - Push this branch to your GitHub project.
+  - Open a Pull Request on GitHub.
+  - The Pull Request must be submitted to master branch of Classroom-IOSSD/SimpleCalculator!
+  - Capture the Pull Request and upload it to PLMS.
+

main.c

@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <string.h>
+#include "my_fscanf.h"
+
+int main(){
+	fp = fopen("points.txt","r");
+	char type[10];
+	double x,y;
+	int line;
+
+	if(fp!=NULL){
+		my_fscanf(fp, "%d", &line);
+		for(int i =0; i < line; i++){
+			my_fscanf(fp, "%s (%f,%f)",type, &x, &y);
+			if(strcmp(type, "point") == 0) {
+				printf("X: %f:, Y: %f\n", x, y);
+			}
+		}
+	}
+	return 0;
+}

my_fscanf.c

@@ -0,0 +1,82 @@
+#include "my_fscanf.h"
+#include <stdarg.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+void my_fscanf(FILE *fp, const char *format, ...) {
+	va_list list;
+	va_start(list, format);
+	while(*format) {
+		if(*format == '%'){
+			format++;
+			switch(*format){
+			case 'd':{
+				int c = getc(fp);
+				int *s=va_arg(list, int*);
+
+				while(isspace(c)){
+
+				}
+				unsigned int num= 0;
+				while(isdight(c)){
+					*s = num * 10 + c -'0';
+					c=getc(fp);
+				}
+				while (isspace(c)){}
+				format++;
+				ungetc(c,fp);
+				break;
+			}
+			case 'c':{
+				char *ch = va_arg(list,char*);
+				char c=getc(fp);
+				while (isspace(c)){}
+				*ch = c;
+				format++;
+				break;
+			}
+			case 's':{
+				char *sp = va_arg(list, char*);
+				int s = 1;
+				while(isspace(c=getc(fp))){}
+
+				while (!isspace(c=getc(fp))){
+					sp[s]=c;
+					s++;
+				}
+				sp[s]=0;
+				format++;
+				ungetc(c,fp);
+				break;
+			}
+			case 'f':{
+				double *f_p=va_arg(list, double*);
+				double di = 0.1;
+				double c=getc(fp);
+				while(isspace(c)){}
+				*f_p = 0;
+				while (isdigit(c)){
+					*f_p= *f_p * 10 + c - '0';
+					c= getc(fp);
+				}
+				if (c == '.'){
+					c = getc(fp);
+					while(isdigit(c)){
+						*f_p=*f_p + (c - '0') * di;
+						di = di* 0.1;
+						c=getc(fp);
+					}
+				}
+				format++;
+				ungetc(c,fp);
+				break;
+		}
+		else{
+			int c = getc(fp);
+			if(*format==c)
+				format++;
+		}
+	}
+	va_end(list);
+}

my_fscanf.h

@@ -0,0 +1,7 @@
+#ifndef MY_FSCANF_H
+#define MY_FSCANF_H
+#include <stdio.h>
+
+void my_fscanf(FILE *fp,const char *format, ...);
+
+#endif

operators.c

@@ -10,7 +10,8 @@ int mul(int op1, int op2) {
 	return op1*op2;
 }
 
-int div(int op1, int op2) {
-	return op1%op2;
+double div(int op1, int op2) {
+	return (double)op1/(double)op2;
 }
 
+

operators.h

@@ -1,4 +1,4 @@
 int add(int op1, int op2);
 int mul(int op1, int op2);
-int div(int op1, int op2);
+double div(int op1, int op2);
 int minus(int op1, int op2);

points.txt

@@ -0,0 +1,5 @@
+4
+point (1.3,2.2)
+point (2.5,3.0)
+point (3.2,4.4)
+point (1.0,5.9)