From a8ee03c9768b8eaed11948d37a07c5c80abb4977 Mon Sep 17 00:00:00 2001
From: Steven Schronk <steven@schronk.com>
Date: Tue, 28 Dec 2010 22:43:24 -0600
Subject: [PATCH] Added structure example

---
 struct.c   | 128 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 struct.txt |  15 ++++++++
 2 files changed, 143 insertions(+)
 create mode 100644 struct.c
 create mode 100644 struct.txt

diff --git a/struct.c b/struct.c
new file mode 100644
index 0000000..3626a9c
--- /dev/null
+++ b/struct.c
@@ -0,0 +1,128 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+typedef struct {
+	char name [31];
+	int age;
+	char gender;
+} Student;
+
+int main()
+{
+	Student pupil[100];
+	char aName[31];
+	int j;
+	void getString(FILE *, char[]);
+	int getData(FILE *, Student[]);
+	int search(char[], Student[], int);
+	void sort(Student[], int);
+	void printStudent(Student);
+	void getString(FILE *, char[]);
+	FILE *in = fopen("struct.txt", "r");
+	if(in == NULL)
+	{
+		printf("input file not found\n");
+		exit(1);
+	}
+
+	int numStudents = getData(in, pupil);
+	if(numStudents == 0)
+	{
+		printf("No data supplied for students\n");
+		exit(1);
+	}
+
+	printf("\n");
+	for(j = 0; j < numStudents; j++)
+		printStudent(pupil[j]);
+	printf("\n");
+
+	getString(in, aName);
+	while(strcmp(aName, "END")!= 0)
+	{
+		int ans = search(aName, pupil, numStudents);
+		if(ans == -1)
+			printf("%s not found\n", aName);
+		else
+			printf("%s found at location %d\n", aName, ans);
+		getString(in, aName);
+	}
+
+	sort(pupil, numStudents);
+	printf("\n");
+	for(j = 0; j < numStudents; j++)
+		printStudent(pupil[j]);
+	}
+
+	void printStudent(Student t)
+	{
+		printf("Name: %s Age: %d Gender:%c\n", t.name, t.age, t.gender);
+	}
+
+	int getData(FILE *in, Student list[])
+	{
+		int n = 0;
+		char temp[31];
+		void getString(FILE *, char[]);
+		char readChar(FILE *);
+	
+		getString(in, temp);
+		while(strcmp(temp, "END") != 0 )
+ 		{
+			strcpy(list[n].name, temp);
+			fscanf(in, "%d", &list[n].age);
+			list[n].gender = readChar(in);
+			n++;
+			getString(in, temp);
+		}
+		return n;
+}
+
+	int search(char key[], Student list[], int n)
+	{
+		int j;
+		for(j = 0; j < n; j++)
+			if(strcmp(key, list[j].name)== 0)
+				return j;
+		return -1;
+	}
+
+	void sort(Student list[], int n)
+	{
+		Student temp;
+		int j, k;
+		for(j = 1; j < n; j++)
+		{
+			temp = list[j];
+			k = j - 1;
+			while(k >= 0 && strcmp(temp.name, list[k].name) < 0)
+			{
+				list[k+1] = list[k];
+				k = k - 1;
+			}
+			list[k+1] = temp;
+		}
+	}
+
+	void getString(FILE *in, char str[])
+	{
+		char ch, delim;
+		int n = 0;
+		str[0] = '\0';
+		while(isspace(ch = getc(in))); /* empty while body */
+		if(ch == EOF) { return; }
+
+		delim = ch;
+		while(((ch = getc(in)) != delim) && (ch != EOF))
+			str[n++] = ch;
+		str[n] = '\0';
+	}
+
+	char readChar(FILE *in)
+	{
+		char ch;
+		while(isspace(ch = getc(in))); /* empty while body */
+		return ch;
+	}
diff --git a/struct.txt b/struct.txt
new file mode 100644
index 0000000..17e8715
--- /dev/null
+++ b/struct.txt
@@ -0,0 +1,15 @@
+"Jones, John" 24 M
+"Mohammed, Lisa" 33 F
+"Singh, Sandy" 29 F
+"Layne, Dennis" 49 M
+"Singh, Cindy" 16 F
+"Ali, Irman" 39 M
+"Kelly, Trudy" 30 F
+"Cox, Kerry" 25 M
+"END"
+
+"Kelly, Trudy"
+"Layne, Dennis"
+"Layne, Cindy"
+"END"
+
-- 
2.11.4.GIT