in ngetdelim(), do sanity checks in an assert instead of checking them

manually and returning -1 if they fail


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3232 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -224,6 +224,9 @@ CVS code -
 	  the text of the spell-checked file into its own function,
 	  replace_buffer(). (DLR)
 - utils.c:
+  ngetdelim()
+	- Do sanity checks in an assert instead of checking them
+	  manually and returning -1 if they fail. (DLR)
   is_whole_word()
 	- Only include when DISABLE_SPELLER isn't defined, as it's only
 	  used then. (DLR)

src/utils.c

@@ -199,8 +199,7 @@ ssize_t ngetdelim(char **lineptr, size_t *n, int delim, FILE *stream)
     int c;
 
     /* Sanity checks. */
-    if (lineptr == NULL || n == NULL || stream == NULL)
-	return -1;
+    assert(lineptr != NULL && n != NULL && stream != NULL);
 
     /* Allocate the line the first time. */
     if (*lineptr == NULL) {