Skip to content
Permalink
Branch: master
Find file Copy path
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
153 lines (139 sloc) 2.64 KB
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
void read_input(char *buf,size_t size){
int ret ;
ret = read(0,buf,size);
if(ret <=0){
puts("Error");
_exit(-1);
}
}
struct heap {
size_t size ;
char *content ;
};
struct heap *heaparray[10];
void menu(){
puts("--------------------------------");
puts(" Heap Creator ");
puts("--------------------------------");
puts(" 1. Create a Heap ");
puts(" 2. Edit a Heap ");
puts(" 3. Show a Heap ");
puts(" 4. Delete a Heap ");
puts(" 5. Exit ");
puts("--------------------------------");
printf("Your choice :");
}
void create_heap(){
int i ;
char buf[8];
size_t size = 0;
for(i = 0 ; i < 10 ; i++){
if(!heaparray[i]){
heaparray[i] = (struct heap *)malloc(sizeof(struct heap));
if(!heaparray[i]){
puts("Allocate Error");
exit(1);
}
printf("Size of Heap : ");
read(0,buf,8);
size = atoi(buf);
heaparray[i]->content = (char *)malloc(size);
if(!heaparray[i]->content){
puts("Allocate Error");
exit(2);
}
heaparray[i]->size = size ;
printf("Content of heap:");
read_input(heaparray[i]->content,size);
puts("SuccessFul");
break ;
}
}
}
void edit_heap(){
int idx ;
char buf[4];
printf("Index :");
read(0,buf,4);
idx = atoi(buf);
if(idx < 0 || idx >= 10){
puts("Out of bound!");
_exit(0);
}
if(heaparray[idx]){
printf("Content of heap : ");
read_input(heaparray[idx]->content,heaparray[idx]->size+1);
puts("Done !");
}else{
puts("No such heap !");
}
}
void show_heap(){
int idx ;
char buf[4];
printf("Index :");
read(0,buf,4);
idx = atoi(buf);
if(idx < 0 || idx >= 10){
puts("Out of bound!");
_exit(0);
}
if(heaparray[idx]){
printf("Size : %ld\nContent : %s\n",heaparray[idx]->size,heaparray[idx]->content);
puts("Done !");
}else{
puts("No such heap !");
}
}
void delete_heap(){
int idx ;
char buf[4];
printf("Index :");
read(0,buf,4);
idx = atoi(buf);
if(idx < 0 || idx >= 10){
puts("Out of bound!");
_exit(0);
}
if(heaparray[idx]){
free(heaparray[idx]->content);
free(heaparray[idx]);
heaparray[idx] = NULL ;
puts("Done !");
}else{
puts("No such heap !");
}
}
int main(){
char buf[4];
setvbuf(stdout,0,2,0);
setvbuf(stdin,0,2,0);
while(1){
menu();
read(0,buf,4);
switch(atoi(buf)){
case 1 :
create_heap();
break ;
case 2 :
edit_heap();
break ;
case 3 :
show_heap();
break ;
case 4 :
delete_heap();
break ;
case 5 :
exit(0);
break ;
default :
puts("Invalid Choice");
break;
}
}
return 0 ;
}
You can’t perform that action at this time.