未定义的引用在C gotoxy [英] undefined reference to gotoxy in C
问题描述
我试图用C语言编写的程序（code ::在windows块）。
我已经加入下面的头文件，它没有错误的编译，但是当涉及到运行code，它抛出一个错误未定义的引用gotoxy。
找到完整code。
错误出现在以往我有gotoxy语句。
I am trying to write a program in C language(code::blocks in windows). I have added below header files, it compiles with no error, but when it comes to run the code it throws an error undefined reference to gotoxy. Find the full code. Error comes where ever I have gotoxy statements.
# include<stdio.h>
# include<conio.h>
# include<malloc.h>
# include<stdlib.h>
# include<windows.h>
#include<dos.h>
struct node
{ int data;
struct node *link;
};
void append(struct node **,int);
void in_begin(struct node **,int);
void del(struct node **,int);
void in_middle(struct node **,int,int);
int count(struct node *);
void display(struct node *);
char ans;
int main()
{ struct node *p; /* p can be said as the head or a start ptr */
p=NULL;
/* Printing the menu */
int num,loc;
char choice;
do
{ //clrscr();
printf("PROGRAM TO IMPLEMENT SINGLY LINKED LIST ");
printf("\n=====================================");
printf("\n\n1.Create \\ Appending The List");
printf("\n2.Insert Node At Begining");
printf("\n3.Insert Node In Middle");
printf("\n4.Deleting a Node");
printf("\n5.Counting The No Of Nodes");
printf("\n6.Displaying the list");
printf("\n7.Exit");
oper:
gotoxy(1,15);printf(" ");
gotoxy(1,11);printf("\n\nEnter ur Choice : ");
choice=getch();
switch(choice)
{
case '1':
// char ans;
do
{ printf("Enter any number : ");
scanf("%d",&num);
append(&p,num);
printf("Enter more (y/n) :");
fflush(stdin);
ans=getchar();
}while(ans !='n');
break;
case '2':
printf("Enter The Data : ");
scanf("%d",&num);
in_begin(&p,num);
break;
case '3':
printf("\nEnter The Position :");
scanf("%d",&loc);
printf("\nEnter The Data : ");
scanf("%d",&num);
in_middle(&p,loc,num);
break;
case '4':
printf("\nEnter The Data u Want To Delete : ");
scanf("%d",&num);
del(&p,num);
break;
case '5':
printf("\nThe No Of Nodes Are %d",count(p));
getch();
break;
case '6':
display(p);
getch();
break;
case '7':
printf("\n\nQuiting.......");
getch();
exit(0);
break;
default:
gotoxy(1,15);printf("Invalid choice.Please Enter Correct Choice");
getch();
goto oper;
}
}while(choice !=7);
return 0;
}
void append(struct node **q,int num)
{ struct node *temp,*r;
temp = *q;
if(*q==NULL)
{ temp = (struct node *)malloc(sizeof(struct node));
temp->data=num;
temp->link=NULL;
*q=temp;
}
else
{ temp = *q;
while(temp->link !=NULL)
{ temp=temp->link;
}
r = (struct node *)malloc(sizeof(struct node));
r->data=num;
r->link=NULL;
temp->link=r;
}
}
void display(struct node *q)
{ if(q==NULL)
{ printf("\n\nEmpty Link List.Can't Display The Data");
getch();
goto last;
}
while(q!=NULL)
{ printf("\n%d",q->data);
q=q->link;
}
last:
;
}
int count(struct node *q)
{ int c=0;
if(q==NULL)
{ printf("Empty Link List.\n");
getch();
goto last;
}
while(q!=NULL)
{ c++;
q=q->link;
}
last:
return c;
}
void in_begin(struct node **q,int num)
{ struct node *temp;
if(*q==NULL)
{ printf("Link List Is Empty.Can't Insert.");
getch();
goto last;
}
else
{ temp=(struct node *)malloc(sizeof(struct node));
temp->data=num;
temp->link=*q;
*q=temp; /* pointing to the first node */
}
last:
getch();
}
void in_middle(struct node **q,int loc,int num)
{ struct node *temp,*n;
int c=1,flag=0;
temp=*q;
if(*q==NULL)
{ printf("\n\nLink List Is Empty.Can't Insert.");
getch();
goto last;
}
else
while(temp!=NULL)
{ if(c==loc)
{ n = (struct node *)malloc(sizeof(struct node));
n->data=num;
n->link=temp->link;
temp->link=n;
flag=1;
}
c++;
temp=temp->link;
}
if(flag==0)
{ printf("\n\nNode Specified Doesn't Exist.Cant Enter The Data");
getch();
}
else
{ printf("Data Inserted");
getch();
}
last:
getch();
}
void del(struct node**q,int num)
{ if(*q==NULL)
{ printf("\n\nEmpty Linked List.Cant Delete The Data.");
getch();
goto last;
}
else
{
struct node *old,*temp;
int flag=0;
temp=*q;
while(temp!=NULL)
{ if(temp->data==num)
{ if(temp==*q) /* First Node case */
*q=temp->link; /* shifted the header node */
else
old->link=temp->link;
free(temp);
flag=1;
}
else
{ old=temp;
temp=temp->link;
}
}
if(flag==0)
printf("\nData Not Found...");
else
printf("\nData Deleted...Tap a key to continue");
getch();
}
last:
getch();
}
请帮我。
推荐答案
你面对是不相关的 code问题:: Blocks的，这是有关它的使用（默认MinGW的）编译器，这是因为该功能不是标准的，并没有在该编译器实现的。我不知道如果Borland公司仍然提供 CONIO.H ，但你可以尝试的这一个 的MinGW 。
The problem you're facing isn't related to Code::Blocks, it's related to the compiler it's using (MinGW by default), and it's because that function isn't standard and wasn't implemented in that compiler. I'm not sure if Borland still provides conio.h, but you could try this one for MinGW.
看一看这个的http：// projectsofashok。 blogspot.in/2010/05/gotoxy-in-$c$cblocks.html
您也可以尝试下面的代码片段中，这将在海湾合作委员会的工作
You can also try the below snippet, this will work in GCC
#include<stdio.h>
//gotoxy function
void gotoxy(int x,int y)
{
printf("%c[%d;%df",0x1B,y,x);
}
main ()
{
gotoxy(25,50); //reposition cursor
printf("hello world"); //display text
}
您也可以看看 NCURSES 。
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