// Lua: realfrequency = setup( idR,idG,idB,frequency)
static int lpwmled_setup( lua_State* L )
{
s32 freq; // signed, to error check for negative values
int err;
if((err=checkid(L,&(led.pwmidr),1))!=1) return err;
if((err=checkid(L,&(led.pwmidg),2))!=1) return err;
if((err=checkid(L,&(led.pwmidb),3))!=1) return err;
freq = luaL_checkinteger( L, 4 );
if ( freq <= 0 )
return luaL_error( L, "wrong arg range" );
led.frequency=freq;
if ( led.frequency > 0 ) led.frequency = platform_pwm_setup( led.pwmidr,led.frequency, 0 );
if ( led.frequency > 0 ) led.frequency = platform_pwm_setup( led.pwmidg,led.frequency, 0 );
if ( led.frequency > 0 ) led.frequency = platform_pwm_setup( led.pwmidb,led.frequency, 0 );
if(led.frequency==0)
return luaL_error( L, "too many pwms." );
lua_pushinteger( L, led.frequency );
platform_pwm_start( led.pwmidr );
platform_pwm_start( led.pwmidg );
platform_pwm_start( led.pwmidb );
led.maxduty_r=1023;
led.maxduty_g=1023;
led.maxduty_b=1023;
return 1;
}
vector<int> exclusiveTime(int n, vector<string>& logs) {
vector<int> ret(n,0); //func id as index, time is value
stack<pair<int,int>> s; //func id, current execution time, when start, push, when end, pop
for(int i=0;i<logs.size();i++){
int index = 0;
int id = checkid(logs[i],index);
int label = checklabel(logs[i],index);
int t = checktime(logs[i],index);
if(label==0){
s.push(make_pair(id,t));
}else{
pair<int,int> cur = s.top();
int last = t-cur.second+1;
ret[cur.first]+=last;
s.pop();
if (!s.empty()) {
//to remove over count, not time for s.top().first id
ret[s.top().first] -= last;
}
}
}
return ret;
}
int getdata()
{
int t;
gotoxy(20,3);printf("Enter the Information Below");
gotoxy(20,4);printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
gotoxy(20,5);
printf("\xB2");gotoxy(53,5);printf("\xB2");
gotoxy(20,6);
printf("\xB2");gotoxy(53,6);printf("\xB2");
gotoxy(20,7);
printf("\xB2");gotoxy(53,7);printf("\xB2");
gotoxy(20,8);
printf("\xB2");gotoxy(53,8);printf("\xB2");
gotoxy(20,9);
printf("\xB2");gotoxy(53,9);printf("\xB2");
gotoxy(20,10);
printf("\xB2");gotoxy(53,10);printf("\xB2");
gotoxy(20,11);
printf("\xB2");gotoxy(53,11);printf("\xB2");
gotoxy(20,12);
printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
gotoxy(21,6);
printf("Book ID:\t");
gotoxy(30,6);
scanf("%d",&t);
if(checkid(t) == 0)
{
gotoxy(21,13);
printf("\aThe book id already exists\a");
getch();
menu();
return 0;
}
add.book_id=t;
fflush(stdin);
gotoxy(21,7);
printf("Book Name:");
fflush(stdin);
gotoxy(31,7);
gets(add.bookname);
fflush(stdin);
gotoxy(21,8);
printf("Author:");gotoxy(28,8);
fflush(stdin);
gets(add.author);
gotoxy(21,9);
printf("Year:");gotoxy(28,9);
scanf("%d",&add.year);
fflush(stdin);
gotoxy(21,10);
printf("Quantity:");gotoxy(31,10);
scanf("%d",&add.quantity);
gotoxy(21,10);
return 1;
}
void editbooks() { /* Edit details of books like shelf, no. of copies, etc.*/
system("clear");
int c = 0, y, d, e;
printf(" Edit Books\n");
while(1) {
system("clear");
printf("Enter Book Id to be edited:");
scanf("%d", &d);
fp = fopen("Library.dat", "rb+");
while(fread(&a, sizeof(a), 1, fp) == 1) {
if(checkid(d) == 0) {
printf("The book is availble\n");
printf("The Book ID:");
scanf("%d", &a.id);
printf("Enter new name:");
scanf("%s", a.name);
printf("Enter new Author:");
scanf("%s" ,a.Author);
printf("Enter new quantity:");
scanf("%d", &a.quantity);
printf("Enter new price:");
scanf("%f", &a.Price);
printf("Enter new rackno:");
scanf("%d", &a.rackno);
printf("The record is modified\n");
fseek(fp, ftell(fp) - sizeof(a), 0);
fwrite(&a, sizeof(a), 1, fp);
fclose(fp);
c = 1;
}
if(c == 0) {
printf("No record found\n");
}
}
printf("Modify another Record?(Y/N) pres 1 for YES and 2 for NO");
scanf("%d", &y);
if(y == 2) {
mainmenu();
}
else {
system("clear");
editbooks();
}
}
}
int getdata() { /* accept data to add book */
int t;
printf("Enter the Information Below\n");
printf("Category:");
printf("%s",branch[s-1]);
printf("\nBook ID:\t");
scanf("%d",&t);
if(checkid(t) == 0) {
printf("The book id checkid exists\t");
mainmenu();
}
a.id = t;
printf("\nBook Name:");
scanf("%s", a.name);
printf("\nAuthor:");
scanf("%s", a.Author);
printf("\nQuantity:");
scanf("%d", &a.quantity);
printf("\nPrice:");
scanf("%f", &a.Price);
printf("\nRack No:");
scanf("%d", &a.rackno);
return 1;
}
void issuebooks() { /* Issue perticular book to student also check for returntime which is 15 days */
time_t td = time(0); // get time now
struct tm * now = localtime( & td );
//int dd1, mm1, yy1;
a.issued.dd = now->tm_mday;
a.issued.mm = now->tm_mon;
a.issued.yy = now->tm_year;
printf("\n\n******** %d %d %d\n\n",a.issued.dd, a.issued.mm, a.issued.yy);
int t, ch, y;
system("clear");
printf("BOOK ISSUE SECTION\n");
printf("1. Issue a Book\n");
printf("2. View Issued Book\n");
printf("3. Search Issued Book\n");
printf("4. Remove Issued Book\n");
printf("5. Retutn to mainmemu\n");
printf("Enter a Choice:\n");
scanf("%d", &ch);
FILE *fs;
switch(ch) {
x1: case 1: { /* issue book*/
system("clear");
int c = 0,y;
while(1) {
system("clear");
printf(" Book Issue Section\n");
printf("Enter the Book Id:\n");
scanf("%d", &t);
fp = fopen("Library.dat","rb+");
fs = fopen("Issue.txt","ab+");
if(checkid(t) == 0) {
printf("The book record is available\n");
printf("There are %d unissued books in library\n", a.quantity);
printf("The name of book is %s\n", a.name);
printf("Enter student name:\n");
scanf("%s", a.stname);
a.issued.dd = now->tm_mday;
a.issued.mm = now->tm_mon;
a.issued.yy = now->tm_year;
printf("Issued date = %d - %d - %d\n", a.issued.dd, a.issued.mm, a.issued.yy);
printf("The BOOK of ID %d is issued ", a.id);
a.duedate.dd = a.issued.dd+RETURNTIME;
a.duedate.mm = a.issued.mm;
a.duedate.yy = a.issued.yy;
if(a.duedate.dd > 30) {
a.duedate.mm += a.duedate.dd / 30;
a.duedate.dd -= 30;
}
if(a.duedate.mm > 12) {
a.duedate.yy += a.duedate.mm / 12;
a.duedate.mm -= 12;
}
printf("To be return:%d-%d-%d", a.duedate.dd, a.duedate.mm, a.duedate.yy);
fseek(fs, sizeof(a), SEEK_END);
fwrite(&a, sizeof(a), 1, fs);
fclose(fs);
c = 1;
}
if(c == 0) {
printf("No record found\n");
}
fclose(fp);
printf("\nIssue any more(Y/N) press 1 for YES and 2 for NO:");
scanf("%d", &y);
if(y == 1)
goto x1;
else
issuebooks();
}
break;
}
case 2: { /* view issued books */
system("clear");
int j = 4;
printf("\tIssued book list\n");
fs = fopen("Issue.txt","rb");
while(fread(&a,sizeof(a),1,fs)==1) {
printf("\n\nSTUDENT NAME: %s", a.stname);
printf("\nCATEGORY : %s", a.cat);
printf("\nID : %d", a.id);
printf("\nBOOK NAME: %s", a.name);
printf("\nISSUED DATE : %d-%d-%d", a.issued.dd, a.issued.mm, a.issued.yy );
printf("\nRETURN DATE : %d-%d-%d\n", a.duedate.dd, a.duedate.mm, a.duedate.yy);
j++;
}
fclose(fs);
printf("Press 1 to go issue books again:");
scanf("%d", &y);
if(y == 1)
issuebooks();
}
break;
x2: case 3: { /* Search for issued book */
system("clear");
int p, c = 0;
printf("Enter Book ID:");
scanf("%d", &p);
while(1) {
fs = fopen("Issue.txt", "rb");
while(fread(&a, sizeof(a), 1, fs) == 1) {
if(a.id == p)
issuerecord();
c = 1;
}
fclose(fs);
if(c == 0)
printf("No Record Found");
printf("Try Another Search?(Y/N) press 1 for YES and 2 for NO:");
scanf("%d", &y);
if(y == 1)
goto x2;
else
issuebooks();
}
}
break;
x3: case 4: { /* Remove issued book */
int y;
system("clear");
int b;
FILE *fg;
while(1) {
printf("Enter book id to remove:");
scanf("%d", &b);
fs = fopen("Issue.txt", "rb+");
while(fread(&a, sizeof(a), 1, fs) == 1) {
if(a.id == b) {
issuerecord();
flag = 10;
}
if(flag == 10) {
printf("Do You Want to Remove it?(Y/N) press 1 for YES and 2 for NO");
scanf("%d", &y);
if(y == 1) {
fg = fopen("record.txt", "wb+");
rewind(fs);
while(fread(&a, sizeof(a), 1, fs) == 1) {
if(a.id!=b) {
fseek(fs, 0, SEEK_CUR);
fwrite(&a, sizeof(a), 1, fg);
}
}
fclose(fs);
fclose(fg);
remove("Issue.txt");
rename("record.dat", "Issue.txt");
printf("The issued book is removed from list\n");
printf("Delete any more?(Y/N) press 1 fo1r YES and 2 for NO");
scanf("%d", &y);
if(y == 1)
goto x3;
else
issuebooks();
}
}
if(flag!= 10) {
printf("No Record Found\n");
printf("Press 1 to go issue books again:");
scanf("%d", &y);
if(y == 1)
issuebooks();
}
}
}
}
case 5:
mainmenu();
break;
default:
printf("Wrong Entry!!\n");
return 0;
issuebooks();
break;
}
}
void findelectrodes::find()
{
thresh = img.clone();
//tresholding image by using adaptive thresholding, 203 is the matrix size and has to be adapted if thresholding fails
cv::adaptiveThreshold(img,thresh,255,CV_ADAPTIVE_THRESH_MEAN_C, CV_THRESH_BINARY,203,0);
//searching for contours in thresholded image, building hierachy of contours (outercontour -> innercontours)
cv::findContours( thresh.clone() , contours, hierarchy,CV_RETR_TREE, CV_CHAIN_APPROX_NONE );
//checking every found contour...
for( int i = 0; i< contours.size(); i++ )
{
//counting innercountours from the left and from the right side
int innercontours = -1;
for(int next = hierarchy[i][2]; next >= 0; next = hierarchy[next][0])
{
innercontours++;
}
for(int prev = hierarchy[i][2]; prev >= 0; prev = hierarchy[prev][1])
{
innercontours++;
}
//checking if contour matches expected perimeter range and expected innercontour size, has to be adapted if image properties are changed extremely
if( cv::arcLength(contours[i], true) > img.cols/4 && cv::arcLength(contours[i], true) < 30*img.cols &&
innercontours >= 7 && innercontours <= 24)
{
//checking for image contours which are large enough to be considered as an electrode marker
int largeinnercontours = 0;
for(int next = hierarchy[i][2]; next >= 0; next = hierarchy[next][0])
{
if( (cv::contourArea( contours[next], false) >= cv::contourArea( contours[i], false)/200) &&
(cv::contourArea( contours[next], false) <= cv::contourArea( contours[i], false)/20) )
{
largeinnercontours++;
}
}
for(int prev = hierarchy[ hierarchy[i][2] ][1]; prev >= 0; prev = hierarchy[prev][1])
{
if( (cv::contourArea( contours[prev], false) >= cv::contourArea( contours[i], false)/200) &&
(cv::contourArea( contours[prev], false) <= cv::contourArea( contours[i], false)/20) )
{
largeinnercontours++;
}
}
if(largeinnercontours >= 7 && largeinnercontours <= 24)
{
//saving contour id in list for further analysis
std::cout << "Contour-Id: " << i << " Innercontours:" << innercontours << " Largeinnercontours:" << largeinnercontours << std::endl;
stripes.push_back(i);
}
}
}
for(int i = 0; i < stripes.size(); i++) //analysing every found stripe
{
//checking for sizes of inner countous, if size is in the range of electrode marker, calculate centroid of marker
cv::Moments moment;
std::vector<cv::Point2f> centroids;
std::vector<double> centroidPerimeter;
std::vector<int> centroidContour;
for(int next = hierarchy[stripes[i]][2]; next >= 0; next = hierarchy[next][0])
{
if( (cv::contourArea( contours[next], false) >= cv::contourArea( contours[stripes[i]], false)/300) &&
(cv::contourArea( contours[next], false) <= cv::contourArea( contours[stripes[i]], false)/20) )
{
moment = cv::moments(contours[next], false);
centroids.push_back( cv::Point2f(moment.m10/moment.m00 ,moment.m01/moment.m00));
centroidPerimeter.push_back( cv::arcLength( contours[next], true));
centroidContour.push_back( next);
}
}
for(int prev = hierarchy[ hierarchy[stripes[i]][2] ][1]; prev >= 0; prev = hierarchy[prev][1])
{
if( (cv::contourArea( contours[prev], false) >= cv::contourArea( contours[stripes[i]], false)/300) &&
(cv::contourArea( contours[prev], false) <= cv::contourArea( contours[stripes[i]], false)/20) )
{
moment = cv::moments(contours[prev], false);
centroids.push_back( cv::Point2f(moment.m10/moment.m00 ,moment.m01/moment.m00));
centroidPerimeter.push_back( cv::arcLength( contours[prev], true));
centroidContour.push_back( prev);
}
}
//if two centroids are too close, thresholding for marker might be wrong and both centroids have to be joined
for( int j=0; j < centroids.size(); j++)
{
for( int k = j+1; k < centroids.size(); k++)
{
double dist = sqrt( (centroids[j].x - centroids[k].x)*(centroids[j].x - centroids[k].x) + (centroids[j].y - centroids[k].y)*(centroids[j].y - centroids[k].y) );
double averagePerimeter = ( cv::arcLength( contours[centroidContour[j]], true) + cv::arcLength( contours[centroidContour[k]], true))/2;
if( dist <= averagePerimeter/2 //&& additional requirement removed: after long thinking, does not make sense why rectangular markers should not be merged and rhombic markers not
//cv::minAreaRect(contours[centroidContour[j]]).size.area() <= 1.7 * cv::contourArea(contours[centroidContour[j]], false) &&
//cv::minAreaRect(contours[centroidContour[k]]).size.area() <= 1.7 * cv::contourArea(contours[centroidContour[k]], false)
)
{
centroids[j].x = (centroids[j].x + centroids[k].x)/2;
centroids[j].y = (centroids[j].y + centroids[k].y)/2;
centroidPerimeter[j] += centroidPerimeter[k];
centroids[k].x = -1;
centroids[k].y = -1;
}
}
}
//delete second marker of two joined markers (joined marker is written to first marker position)
for( int j=0; j < centroids.size(); j++)
{
if( centroids[j].x == -1 )
{
centroids.erase(centroids.begin()+j);
centroidPerimeter.erase(centroidPerimeter.begin()+j);
j--;
}
}
sortCentroids(centroids); //sort found centroids by x or y coordinates
std::cout << centroids << std::endl;
std::cout << "\nPotentieller Streifen: ";
if(centroids.size() <= 12 && centroids.size() > 0) //stripe size is not allowed to be bigger than 12 or smaller than 1
{
//getting subpixel information for found centroids
cv::cornerSubPix(img, centroids, cvSize(4,4), cvSize(1,1) ,cvTermCriteria ( CV_TERMCRIT_ITER|CV_TERMCRIT_EPS,100,0.001 ));
std::vector<int> id;
for( int j=0; j < centroids.size(); j++)
{
//for every centroid: calculating connection vector of actual and next centroid
//scaling the vector to the half of the diagonal length of one of the four rectangles which are belonging to an elctrode marker
//rotating the vector in four directions which are roughly pointing to the diagonal of each reactangle
//checking for colors of calculated points for getting bit of electrode marker
//adding bit to id vector: '0','1' are set for bit values, '-2' is set for errors (bit not decoded)
cv::Point2f direction;
cv::Point2f rot1;
cv::Point2f rot2;
cv::Point2f rot3;
cv::Point2f rot4;
if( j!= (centroids.size()-1) )
{
direction.x = centroids[j+1].x - centroids[j].x;
direction.y = centroids[j+1].y - centroids[j].y;
}
else
{
direction.x = centroids[j].x - centroids[j-1].x;
direction.y = centroids[j].y - centroids[j-1].y;
}
double length = sqrt( direction.x * direction.x + direction.y * direction.y );
direction.x = 0.09 * centroidPerimeter[j] * direction.x/length;
direction.y = 0.09 * centroidPerimeter[j] * direction.y/length;
rot1.x = ( 0.94 * direction.x - 0.34 * direction.y ); //20°
rot1.y = ( 0.34 * direction.x + 0.94 * direction.y );
rot2.x = ( -0.94 * direction.x - 0.34 * direction.y );
rot2.y = ( 0.34 * direction.x - 0.94 * direction.y );
rot3.x = ( -0.94 * direction.x + 0.34 * direction.y );
rot3.y = ( -0.34 * direction.x - 0.94 * direction.y );
rot4.x = ( 0.94 * direction.x + 0.34 * direction.y );
rot4.y = ( -0.34 * direction.x + 0.94 * direction.y );
if( thresh.at<uchar>(centroids[j].y + rot1.y, centroids[j].x + rot1.x) == 255 &&
thresh.at<uchar>(centroids[j].y + rot2.y, centroids[j].x + rot2.x) == 0 &&
thresh.at<uchar>(centroids[j].y + rot3.y, centroids[j].x + rot3.x) == 255 &&
thresh.at<uchar>(centroids[j].y + rot4.y, centroids[j].x + rot4.x) == 0 )
{
id.push_back(1);
std::cout << 1;
}
else if( thresh.at<uchar>(centroids[j].y + rot1.y, centroids[j].x + rot1.x) == 0 &&
thresh.at<uchar>(centroids[j].y + rot2.y, centroids[j].x + rot2.x) == 255 &&
thresh.at<uchar>(centroids[j].y + rot3.y, centroids[j].x + rot3.x) == 0 &&
thresh.at<uchar>(centroids[j].y + rot4.y, centroids[j].x + rot4.x) == 255 )
{
id.push_back(0);
std::cout << 0;
}
else if( thresh.at<uchar>(centroids[j].y + 0.8 * rot1.y, centroids[j].x + 0.8 * rot1.x) == 255 &&
thresh.at<uchar>(centroids[j].y + 0.8 *rot2.y, centroids[j].x + 0.8 * rot2.x) == 0 &&
thresh.at<uchar>(centroids[j].y + 0.8 *rot3.y, centroids[j].x + 0.8 * rot3.x) == 255 &&
thresh.at<uchar>(centroids[j].y + 0.8 *rot4.y, centroids[j].x + 0.8 * rot4.x) == 0 )
{
id.push_back(1);
std::cout << 1;
}
else if( thresh.at<uchar>(centroids[j].y + 0.8 *rot1.y, centroids[j].x + 0.8 * rot1.x) == 0 &&
thresh.at<uchar>(centroids[j].y + 0.8 *rot2.y, centroids[j].x + 0.8 * rot2.x) == 255 &&
thresh.at<uchar>(centroids[j].y + 0.8 *rot3.y, centroids[j].x + 0.8 * rot3.x) == 0 &&
thresh.at<uchar>(centroids[j].y + 0.8 *rot4.y, centroids[j].x + 0.8 * rot4.x) == 255 )
{
id.push_back(0);
std::cout << 0;
}
else
{
id.push_back(-2);
std::cout << -2;
}
/*cv::circle(thresh, centroids[j] + rot1 , 2, cv::Scalar(0,0,0), 1);
cv::circle(thresh, centroids[j] + rot2 , 2, cv::Scalar(0,0,0), 1);
cv::circle(thresh, centroids[j] + rot3 , 2, cv::Scalar(0,0,0), 1);
cv::circle(thresh, centroids[j] + rot4 , 2, cv::Scalar(0,0,0), 1);*/
}
std::cout << std::endl << std::endl;
checkid(id, centroids);
}
centroids.clear();
}
}
void editbookrecords()
{
system("cls");
int c=0;
int d,e;
gotoxy(20,4);
printf("****Edit Books Section****");
char another='y';
while(another=='y')
{
system("cls");
gotoxy(20,2);
printf("Enter Book ID to be edited:");
scanf("%d",&d);
fp=fopen("quizdata.txt","rb+");
while(fread(&add,sizeof(add),1,fp)==1)
{
if(checkid(d)==0)
{
gotoxy(25,4);
printf("The book is AVAILABLE.");
gotoxy(25,6);
printf("The Book ID: %d",add.book_id);
gotoxy(1,8);
printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
gotoxy(1,9);
printf("\xB2 Current name: ");puts(add.bookname);gotoxy(38,9);printf("\xB2");
gotoxy(1,10);
printf("\xB2 Current Author:");puts(add.author);gotoxy(38,10);printf("\xB2");
gotoxy(1,11);
printf("\xB2 Current year:");printf("%d",add.year);gotoxy(38,11);printf("\xB2");
gotoxy(1,12);
printf("\xB2 Current quantity:");printf("%d",add.quantity);gotoxy(38,12);printf("\xB2");
gotoxy(1,13);
printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
fflush(stdin);
gotoxy(40,8);
printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
gotoxy(40,9);printf("\xB2");
gotoxy(40,10);printf("\xB2");
gotoxy(40,11);printf("\xB2");
gotoxy(40,12);printf("\xB2");
gotoxy(78,9);printf("\xB2");
gotoxy(78,10);printf("\xB2");
gotoxy(78,11);printf("\xB2");
gotoxy(78,12);printf("\xB2");
gotoxy(40,13);
printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
gotoxy(40,9);
printf("\xB2 Enter new name:");gets(add.bookname);
gotoxy(40,10);
printf("\xB2 Enter new Author:");gets(add.author);
gotoxy(40,11);
printf("\xB2 Enter new year:");scanf("%d",&add.year);
gotoxy(40,12);
printf("\xB2 Enter new quantity:");scanf("%d",&add.quantity);
gotoxy(22,17);
printf("The record is modified");
fseek(fp,-sizeof(add),1);
fwrite(&add,sizeof(add),1,fp);
fclose(fp);
c=1;
}
if(c==0)
{
gotoxy(15,9);
printf("No record found");
}
}
gotoxy(22,20);
printf("Modify another Record?(Y/N)");
fflush(stdin);
gotoxy(50,20);
another=getch() ;
}
returnfunc();
}
