“bukuAjar” — 2011/9/22 — 13:39 — page i — #1 - cs.unsyiah.ac.id ...

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“bukuAjar” — 2011/9/22 — 13:39 — page 75 — #89
11.4. Beberapa Contoh Manipulasi File 75
Satu-Satu Karakter.
#include
#include
#include
int main (void){
int c;
FILE *fp;
char *filename = "data.txt";
}
if((fp = fopen(filename, "r"))==NULL){
printf("Error dalam mengakses file...\n");
return EXIT_FAILURE;
}
while((c=fgetc(fp)) != EOF){
putchar(toupper(c));
}
fclose(fp);
return EXIT_SUCCESS;
Contoh 2. Buka File, Jumlahkan, dan Tulis Penjumlahan ke
dalam File.
#include
#include
int main (void){
int a, sum = 0;
FILE *ifp, *ofp;
ifp = fopen("input_file.txt", "r");
ofp = fopen("output_file.txt", "w");
}
while (fscanf(ifp,"%d",&a)==1){
sum += a;
}
fprintf(ofp, "Jumlah = %d\n",sum);
fclose(ifp);
fclose(ofp);
return EXIT_SUCCESS;
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