Thread: Issues with several warnings.

Hey, I have several warnings I've been trying to get rid of, but to no avail. Should I be concerned with them? The program still runs fine.

a2.c: In function ‘main’:
a2.c:69: warning: implicit declaration of function ‘index’
a2.c:69: warning: assignment makes pointer from integer without a cast
a2.c:84: warning: control reaches end of non-void function

Here is my code.

Code:

#include <stdio.h>

#include <string.h>

#include <stdlib.h>



int wordcount( char words[])

{

 int  j=0 , wcnt = 0, lenght;



j=strlen(words)-1;

while( strchr(" \t", words[j]) != 0 ) { words[j]=0 ; j-- ; }



j=0 ;


while( strchr(" \t", words[j]) != 0 ) j++;

words=words+j;



lenght = strlen(words) ;

 for(j=0; j<=lenght; j++ ) 

     if( strchr(" \t", words[j]) != 0 ) {
     while( words[j+1]==' ' || words[j+1]=='\t' ) j++ ; wcnt++ ; }

/* At the EOF strchr() returns as if it matched ! */



 return(wcnt);

}











int sylcount( char * words )

{

 int i , j , sylc=0, length=strlen(words);

 char * vowels="AEIOUYaeiouy";



 for(j=0 ; j<=length ; j++){

     i=j;

     while( j<= length && strchr(vowels, words[j]) != 0 ) j++ ;

           if( 1<j-i ){ sylc++ ; i=j; }

}

 return(sylc);

}





int sentencecount( char * sentence)

{

 int  j , sencnt = 0, lenght = strlen(sentence);

 char *sentenders = ".;:?!" ;



 for(j=0; j<=lenght; j++ ) 

     if( strchr(sentenders, sentence[j]) != 0 ) sencnt++;



/* At the EOF strchr() returns as if it matched ! */



 return(sencnt);

}







 

int main()

{



char buf[1048576] , * i , * j ;



i=buf;



while( fgets(i, 1048576, stdin) != 0 )

  {

    if ( ( j=index(i,'\n') ) != 0 ) *j=' ';

    i=i+strlen(i);

  }



printf("\n\n%s\n\n", buf);







printf("Number of words: %d\n", wordcount(buf));

printf("Number of sylables: %d\n", sylcount(buf));

printf("Number of sentences: %d\n", sentencecount(buf));





}

I meant the function index that checks a string for a character. I just used strchr and it fixed itself.