CODEWITHSUNDEEP
ccharc-strings
brun2
brun2

Reputation: 13

warning: incompatible pointer to integer conversion

I am attempting to change the last character in a word to make it the plural version of that word. For example bus to buses or penny to pennies. I get a warning when I try to set the last character equal to the plural ending. Please let me know what I need to change in order to fix this problem. Thank you.

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


int main(void) {
  
  char word[50];
  char *last_char;


  printf("Enter a word: "); 
  scanf("%[^\t\n]", word);
  last_char = &word[(strlen(word)-1)];
  

  if(*last_char == 'y')
  {
    *last_char = "ies";
    printf("\nthis does not work %s", word);
  }

  else if(*last_char == 's')
  {
    *last_char = "es";
    printf("\nthis is working %s", word);
  }

  else if(*last_char == 'h')
  {
    *last_char = 'es';
    printf("\nPlural: %s", word);
  }

  else 
  {
    last_char = &word[(strlen(word))];
    *last_char = 's';
    printf("\nPlural: %s", word);
  }

   
  return 0;
}

Upvotes: 0

Views: 850

Answers (1)

Antti Haapala -- Слава Україні
Antti Haapala -- Слава Україні

Reputation: 133948

Just look at what you said yourself:

I get a warning when I try to set the last character equal to the plural ending.

You've got a memory slot for one character at that position and you're trying to squeeze many at that one slot. Isn't going to work.

"ies"; is not a single character, it is a string - an array of characters that decays to a pointer to the first character. A single char is of integer type; you cannot convert a pointer to character (well you can, but it does not make sense).

In this case the simple solution would be to strcpy the ending to the subarray starting from last_character, i.e.:

strcpy(last_char, "ies");

As for

last_char = &word[(strlen(word))];
*last_char = 's';

that is not correct because the string would not be null-terminated!

remember that last_char was already pointing to the last character, and the null terminator after that is at address last_char + 1; you can replace these two lines with

strcpy(last_char + 1, "s");

Upvotes: 2

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