Removes the spaces from the string - C String

C examples for String:String Function

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Description

Removes the spaces from the string

Demo Code

#include <stdio.h>  
#include <string.h>     // for strchr();  

#define LEN 81  //w w w .  j a  v  a  2 s.co  m
int drop_space(char * s);
char * s_gets(char * st, int n);

int main(void) {
   char orig[LEN];

   puts("Enter a string with space of 80 characters or less:");
   while (s_gets(orig, LEN) && orig[0] != '\0') {
      drop_space(orig);
      puts(orig);
      puts("Enter next string (or just Enter to quit):");
   }
   puts("Bye!");
   return 0;
}

int drop_space(char * s) {
   char * pos;
   while (*s != '\0')
   {
      if (*s == ' ') {
         pos = s;
         do {
            *pos = *(pos + 1);
            pos++;
         } while (*pos);
      }
      else
         s++;
   }
   return 0;
}

char * s_gets(char * st, int n) {
   char * ret_val;
   char * find;

   ret_val = fgets(st, n, stdin);
   if (ret_val) {
      find = strchr(st, '\n');   // look for newline  
      if (find)                  // if the address is not NULL,  
         *find = '\0';          // place a null character there  
      else
         while (getchar() != '\n')
            continue;
   }
   return ret_val;
}

Result


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