fixed warnings from these files

input-routines.c

@@ -15,7 +15,7 @@ int myGetline(char s[], int lim)
 
   for (i=0;i<lim-1 && (c=getchar()) != EOF && c!='\n'; ++i)
     s[i] = c;
-  if (c = '\n')
+  if (c == '\n')
     {
       s[i] = c;
       ++i;
@@ -25,21 +25,21 @@ int myGetline(char s[], int lim)
 }
 
 
-int *readlines(char *lineptr[], int maxlines)
+int readlines(char *lineptr[], int maxlines)
 {
-  int len, *nlines;
+  int len, nlines;
   char *p, line[MAXLEN];
 
-  *nlines=0;
+  nlines=0;
   while ((len = myGetline(line, MAXLEN)) > 0)
     {
-      if (*nlines >= maxlines || (p = (char *)malloc(len)) == NULL)
-	return NULL;
+      if (nlines >= maxlines || (p = (char *)malloc(len)) == NULL)
+	return 0;
       else 
 	{
 	  line [len-1] = '\0';
 	  memmove(p, line, len);
-	  lineptr[*nlines++] = p;
+	  lineptr[nlines++] = p;
 	}
     }
   
@@ -48,7 +48,6 @@ int *readlines(char *lineptr[], int maxlines)
 
 void writelines(char *lineptr[], int nlines)
 {
-  int linenum;
   while (nlines-- >0)
     printf("%s\n", *lineptr++);
 }

sortMain.c

@@ -45,16 +45,16 @@ int main(int argc, char *argv[])
 
 
   
-  if ((nlines = readlines(lineptr, MAXLINES)) >=0)
+  if ((nlines = *(int *)readlines(lineptr, MAXLINES)) >=0)
     {
       printf("UNSORTED ORDER\n");
-      writelines(lineptr, nlines);
+      writelines(*lineptr, nlines);
       
       myQsort ((void **)lineptr, 0, nlines-1, comparing);
 
       printf("\nSORTED ORDER \n");
       
-      writelines(lineptr, nlines);
+      writelines(*lineptr, nlines);
       return 0;
     }
   else