#include <stdio.h>

#include <stdlib.h>



typedef struct

{

 char *name;

 float gpa;

 int i;

}student;

int main(int argc, char *argv[])

{

 int menu,i;

 char ulang;

 FILE *pf;

 char karakter;

 int data[5];

 char judul[30],penerbit[40],pengarang[12];



 do

 {

 printf("Menu Utama Data Perpustakaan\n");

 printf("--------------------------\n");

 printf("1. Tampil Data \n");

 printf("2. Tambah Data \n");

 printf("3. Edit Data \n");

 printf("4. Remove data \n");

 printf("5. Search data \n");

 printf("--------------------------\n");



 printf("Masukan pilihan anda : "); scanf("%d",&menu);

 printf("\n----------------------------\n");



 switch(menu)

 {

 case 1:

 {

 pf = fopen("D:/tugas/file/tugas/data.txt","r");

 if (pf != NULL)

 {

 while ((karakter = getc(pf)) != EOF)

 {

 printf("%c",karakter);

 }

 }

 else

 {

 printf("Kesalahan : File coba.txt tidak dapat dibuka");

 exit(EXIT_FAILURE);

 }

 break;

 }

 case 2:

 {

 pf = fopen("D:/tugas/file/tugas/data.txt","a+");

 //printf("Masukan data berupa bilangan bulat \n");

 /*for (i=0; i<5; i++)

 {

 printf("Data %d : ",i+1); scanf("%d",&data[i]);

 }*/

 printf("Masukan Judul buku : "); fflush(stdin); gets(judul);

 printf("Masukan Penerbit : "); fflush(stdin); gets(penerbit);

 printf("Masukan pengarang : "); fflush(stdin); gets(pengarang);



 if (pf != NULL)

 {

 /*for (i=0; i<5; i++)

 {

 fprintf(pf,"Data ke-%d : %d \n",i+1, data[i]);

 }*/

 fprintf(pf,"Judul buku : %s \n",judul);

 fprintf(pf,"Penerbit : %s \n",penerbit);

 fprintf(pf,"pengarang : %s \n",pengarang);

 fprintf(pf,"---------------------------\n");

 }

 case 3:

 {

 int main()

 {

 FILE *originalFile = fopen("D:/tugas/file/tugas/data.txt","r");

 FILE *newFile = fopen("D:/tugas/file/tugas/data_temp.txt","w");

 int dataCount;

 fscanf(originalFile, "%i", &dataCount);



 data *passingdatas = malloc(sizeof(data) * dataCount);



 int passingCount = 0;



 for i = 0 to i < dataCount,i++;

 {

 int nameLen;

 fscanf(originalFile, "%i", &nameLen);

 char *name = malloc(sizeof(char) * (nameLen + 1));

 name[nameLen] = '\0';

 float gpa;

 fscanf(originalFile, "%s %f", name, &gpa);

 if (gpa >=65.0)

 {

 passingdatas[passingCount].name = name;

 passingdatas[passingCount].gpa = gpa;



 passingCount++;

 }

 }

 fprintf(newFile, "%i\n",passingCount);



 for (int i = 0; i < passingCount; i++)

 fprintf(newFile, "%i %s %.2f\n", strlen(passingdatas[i].name, passingdatas[i].gpa));

 fclose(originalFile);

 fclose(newFile);

 remove("D:/tugas/file/tugas/data.txt");

 rename("D:/tugas/file/tugas/data_temp.txt" , "D:/tugas/file/tugas/data.txt");

 }

 }



 //if (pf != NULL)

 // {

 /*for (i=0; i<5; i++)

 {

 fprintf(pf,"Data ke-%d : %d \n",i+1, data[i]);

 }*/

 // fprintf(pf,"Judul buku : %s \n",judul);

 // fprintf(pf,"Penerbit : %s \n",penerbit);

 // fprintf(pf,"pengarang : %s \n",pengarang);



 // fprintf(pf,"---------------------------\n");*/



 else

 {

 printf("Kesalahan : File coba.txt tidak dapat dibuka");

 exit(EXIT_FAILURE);

 }

 fclose(pf);

 break;

 }





 }

 printf("\nProses di ulang [y/t]: "); fflush(stdin); scanf("%c",&ulang);

 system("cls");

 }

 while (ulang != 't') ;





 //system("PAUSE");

 return 0;

}

Untuk tambah data sama lihat data bisa gan tapi untuk delete search sama edit gak bisa2 gan

help ya gan


eror compile nya

C:\Users\jurs\Desktop\tugas.c||In function `main':|

C:\Users\jurs\Desktop\tugas.cS E N S O R2|error: 'for' loop initial declaration used outside C99 mode|

C:\Users\jurs\Desktop\tugas.cS E N S O R6|error: `nameLen' undeclared (first use in this function)|

C:\Users\jurs\Desktop\tugas.cS E N S O R6|error: (Each undeclared identifier is reported only once|

C:\Users\jurs\Desktop\tugas.cS E N S O R6|error: for each function it appears in.)|

C:\Users\jurs\Desktop\tugas.c|45|error: redefinition of 'i'|

C:\Users\jurs\Desktop\tugas.cS E N S O R2|error: previous definition of 'i' was here|

C:\Users\jurs\Desktop\tugas.c|45|error: 'for' loop initial declaration used outside C99 mode|

C:\Users\jurs\Desktop\tugas.c|46|error: `pasiingStudents' undeclared (first use in this function)|

C:\Users\jurs\Desktop\tugas.c|46|error: too many arguments to function `strlen'|

C:\Users\jurs\Desktop\tugas.c|57|error: syntax error before "return"|

||=== Build finished: 10 errors, 0 warnings (0 minutes, 0 seconds) ===|