okk... i compiled it now... one more error is there .. use of getche().. use getchar() instead of getche() function.. both in write and append functions...
Have u noticed one thing while reading the file.The read function prints only the last string that u entered. Because the file mode that you are using is wrong.
When you open a file, you must specify how it is to be opened. This means whether to create it from new, overwrite it and whether it's text or binary, read or write and if you want to append to it. This is done using one or more file mode specifiers which are single letters "r", "b", "w", "a" and + (in combination with the other letters). "r" - Opens the file for reading. This fails if the file does not exist or cannot be found. "w" - Opens the file as an empty file for writing. If the file exists, its contents are destroyed. "a" - Opens the file for writing at the end of the file (appending) without removing the EOF marker before writing new data to the file; this creates the file first if it doesn't exist. Adding + to the file mode creates three new modes: "r+" Opens the file for both reading and writing. (The file must exist.) "w+" Opens the file as an empty file for both reading and writing. If the file exists, its contents are destroyed. "a+" Opens the file for reading and appending; the appending operation includes the removal of the EOF marker before new data is written to the file and the EOF marker is restored after …
One little question bit off-toppic. I get an array of chars ended with a binary zero. I need to count how many chars do I have in the array. Can I check the ending like this?
while(s[i]!=0) { length++; i++}
I'm a bit confused about what a binary zero is. Do I get it right that it is equal to a regular zero? :)
EDIT: And how can I add the binary zero to the end of my own array? :D
Please start new thread for new question....
>>And how can I add the binary zero to the end of my own array?
I think you are talking about '\0' . A char string is always terminated by '\0' char.
Write a 'C' Function to combine two singly connected linked lists in the following manner. Suppose one list is "L" which can be given by L=(l0,l1,.....,lm) and the other list is "M" where "M" can be expressed as M=(m0,m1,......,mn) where each li,mi represents one node in the respective lists. For simplicity, you may assume that each node contains an integer as the data. After combining them the combined list should be (l0,m0,l1,m1,.....,). Do not Use any additional node for writing the Function...
Please give some idea about Implementing this Function...!!
/* program tht replaces two or more consecutive blanks in a string by a single blank.. */
# include<stdio.h>
int main(){
int i;
char s[50],*p,*q;
printf("\n\n :");
gets(s);
for(i=0;s[i];i++){
if(s[i]==32){
p=&s[i+1];
while(*p && *p==32){
q=p;
while(*q){
*q=*(q+1);
q++;
}
}
}
}
printf("\n\n :%s",s);
return 0;
}
In the circular queue you may not rely on relative head and tail positions. You must keep track of the number of elements manually. Extend the struct queue with an int count initialized to 0. Increment it on every enqueue and decrement on every dequeue operations. Rewrite is_empty and is_full to inspect the count and act accordingly.
Of course, upon reaching the end of array, head and tail shall go back to 0.
PS: I'd recommend to test the queue state inside enqueue and dequeue.
Thanks Buddy.... Your suggestion was really helpful to me...
Hello Friends.. I need suggestions to make my this program better... Implementation of a STACK(containing names) as an array, with its basic operations PUSH,POP & SHOW..
# include <stdio.h>
# include <conio.h>
# include <string.h>
# include <process.h>
# define STACKSIZE 5
typedef struct{
int size;
char names[STACKSIZE][20];
}STACK;
void push(char *);
char *pop();
void show();
int is_empty();
int is_full();
STACK *ps;
void main(){
int choice;
char name[20];
STACK s;
ps=&s;
ps->size=0;
do{
clrscr();
printf("\n\t :1 for Push. ");
printf("\n\t :2 for Pop. ");
printf("\n\t :3 for Show.");
printf("\n\t :4 for Exit.");
printf("\n\t Enter your choice:");
scanf("%d",&choice);
switch(choice){
case 1:
if(is_full())
printf("\n\t Error: Stack Overflow..");
else{
printf("\n\n\t Enter a Name:");
fflush(stdin);
gets(name);
push(name);
}
break;
case 2:
if(is_empty())
printf("\n\n\t Error: Stack Underflow..");
else{
printf("\n\n\t Poped up Name is:");
puts(pop());
}
break;
case 3:
if(is_empty())
printf("\n\n\t The Stack is Empty..");
else{
printf("\n\n\t Current Stack is:\n\t\t");
show();
}
break;
case 4:
exit(0);
default:
printf("\n\n\t Press only 1,2,3,4 keys..");
}
while(!kbhit());
}while(1);
}
int is_empty(){
return ps->size==0;
}
int is_full(){
return ps->size==STACKSIZE;
}
void push(char *pc){
strcpy(ps->names[(ps->size)++],pc);
printf("\n\n\t Successfully Pushed into STACK");
}
char * pop(){
return ps->names[--(ps->size)];
}
void show(){
int x=ps->size;
while(x!=0)
printf("\n\t\t %s",ps->names[--x]);
}
#include<stdio.h>
int main()
{
int i,j,k,c;
char s[1000]; //array to store the input string
for(i=0;(c=getchar())!='.';++i) //string to be ended with '.'
{
s[i]=c;
for(j=0;j<=i;++j)
{
if((s[j]==s[j-1])&&(s[j]=='\n' || s[j]=='\t' ||s[j]==' '))
{
j=j-1;
}
}
for(k=0;k<=i;++k)
printf("%c", s[k]);
}
return 0;
}
I am trying to create a program that will remove a consecutive occurrence of white space character. But the output is not as intended. Pls tell me where i went wrong ???? A little support will be helpful !!
may be u could get some help from my this program...
/* program tht replaces two or more consecutive blanks in a string by a single blank.. */
# include<stdio.h>
# include<conio.h>
void main(){
int i;
char s[50],*p,*q;
clrscr();
printf("\n\n :");
gets(s);
for(i=0;s[i];i++){
if(s[i]==32){
p=&s[i+1];
while(*p && *p==32){
q=p;
while(*q){
*q=*(q+1);
q++;
}
}
}
}
printf("\n\n :%s",s);
getch();
}
