CODEWITHSUNDEEP
carrayschar
Kadin Boyle
Kadin Boyle

Reputation: 3

Printing longer than calculated Average words in C program

I have a program that currently reads in words to a variable *char wordlist[lengthOfArray]; So basically it holds char word[10]. I can calculate average word lengths successfully, but I have a method that I want to print the words longer than this average recursively

void printAverage(char *wordlist, int n, int average){
 if (n > 0){
    if (strlen(wordlist[0]) > average){
       printf("%s\n", wordlist[0]);   // Print the one longer than average then move on
       printAverage(wordlist + 1, n-1, average);
      }
      else { 
           printAverage(wordlist+1, n-1, average);
           }
    }
 }

I have looked for hours online to see what is wrong, but for some reason, the comparison if (strlen(a[0]) > average) isn't getting the value of my word correctly, and giving me the error passing arg 1 of strlen makes pointer from Integer without a cast.

Does anyone have any idea how exactly I can do this correctly? Thanks in advance for any help, I am just stuck and I have already tried many things to no avail.

Upvotes: 0

Views: 118

Answers (2)

LogicG8
LogicG8

Reputation: 1757

You are declaring wordlist as a pointer to char instead of pointer to pointer to char. char is an integral type so when you dereference it as wordlist[0] and pass it to strlen() the compiler warns you about passing an integral type instead of a pointer.

Try:

void printAverage(char **wordlist, int n, int average)
{
  if (n > 0){
    if (strlen(wordlist[0]) > average){
      printf("%s\n", wordlist[0]);   // Print the one longer than average then move on
    }
    printAverage(wordlist + 1, n-1, average);
  }
}

Upvotes: 0

paddy
paddy

Reputation: 63471

Your variable wordlist is not an array of words - it is a string. If you have an array of words it's either a 2D array like this:

char *wordlist[]

Or this:

char wordlist[][10]

Or a double-pointer like this:

char **wordlist

You need to set up the parameter according to the actual data you are passing into it.

Upvotes: 1

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