Question

**C**

Write a C function that inputs a pointer to a string and a pointer to a buffer. The function then scans through the string removing leading and trailing whitespace and replacing any run of whitespace within the string with a single space. Your function should follow this prototype:

void tighten(char *oldstring, char* newstring, int length);

The first argument is a pointer to a null-terminated string sitting somewhere in memory. The second argument is a pointer to the first char of a buffer of size length. The function will copy a modified version of the old string into the buffer.

For example, if the original string is “ Be true to the dreams of thy youth!! ”

the new string in the buffer would be “Be true to the dreams of thy youth!!”

Of course, the new string will be terminated with a null. Don't make any assumptions about what is in the buffer to start with. It may have been used several times before. Stop copying characters from the old string to the new string when the new string is full (has length-1 characters). Be sure to terminate the new string with null.

Answer 1

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void removeSpaces(char *str, char *newstring, int length)
{
int count = 0 , i;

for (i = 0; str[i]; i++)
if (str[i] != ' ')
newstring[count++] = str[i];
  
newstring[count] = '\0';
}

int main()
{
int length;
char str[] = "Be true to the dreams of thy youth!!";
length = strlen(str);
char new[length];
removeSpaces(str, new, length);
printf("%s",new);
return 0;
}

==================
See Output



* New Project-201 70326日ロ+ « 。もCompile | | Execute | | > Share Code main.c × root 13 14 15 16 int mainO 17-5 18 19 20 21 newstring[count]0 main.c int length; char str[] = "Be length= strlen(str); char newlength] removeSpaces(str, new, printf("%s", new) ; return 0; true to the dreams of youth!!"; length); 23 24 25 26 27 28 曰Default Term sh-4.2$ gcc -o main *.C sh-4.2$ main Betruetothedreamsofthyyouthlish-4.2$ Browser


Thanks, let me know if there is any concern.



EDIT: After Correction

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void removeSpaces(char *str, char *newstring, int length)
{
int count = 0 , i;

for (i = 0;i<length-1; i++)
if (str[i] != ' ')
   newstring[count++] = str[i];
else if (str[i] == ' ' && str[i+1] != ' ')
   newstring[count++] = str[i];

newstring[count] = '\0';
}

int main()
{
int length;
char str[] = "Be true to the dreams of thy youth!!";
length = strlen(str);
char new1[length];
removeSpaces(str, new1, length);
printf("%s",new1);
return 0;
}