ncurses 5.9 - patch 20110820

[ncurses.git] / test / ditto.c

diff --git a/test/ditto.c b/test/ditto.c
index b8aebac93c5678f28f94604b4354e52006bfe3c4..36644f1274b9e427ad685ca2d4ceb287d9974a7a 100644 (file)
--- a/test/ditto.c
+++ b/test/ditto.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2010,2011 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -29,7 +29,7 @@
 /*
  * Author: Thomas E. Dickey (1998-on)
  *
- * $Id: ditto.c,v 1.32 2008/08/04 13:21:41 tom Exp $
+ * $Id: ditto.c,v 1.41 2011/05/21 18:55:07 tom Exp $
  *
  * The program illustrates how to set up multiple screens from a single
  * program.
@@ -43,7 +43,6 @@
  */
 #include <test.priv.h>
 #include <sys/stat.h>
-#include <errno.h>
 
 #ifdef USE_PTHREADS
 #include <pthread.h>
@@ -99,6 +98,9 @@ typedef struct {
     DITTO *ditto;              /* data for all screens */
 } DDATA;
 
+static void failed(const char *) GCC_NORETURN;
+static void usage(void) GCC_NORETURN;
+
 static void
 failed(const char *s)
 {
@@ -137,8 +139,8 @@ peek_fifo(FIFO * fifo, PEEK * peek)
 {
     int result = -1;
     if (peek->sequence < fifo->sequence) {
-       peek->sequence += 1;
        result = fifo->data[THIS_FIFO(peek->sequence)];
+       peek->sequence += 1;
     }
     return result;
 }
@@ -152,12 +154,11 @@ open_tty(char *path)
     int aslave;
     char slave_name[1024];
     char s_option[sizeof(slave_name) + 80];
-    char *leaf;
 
     if (openpty(&amaster, &aslave, slave_name, 0, 0) != 0
        || strlen(slave_name) > sizeof(slave_name) - 1)
        failed("openpty");
-    if ((leaf = strrchr(slave_name, '/')) == 0) {
+    if (strrchr(slave_name, '/') == 0) {
        errno = EISDIR;
        failed(slave_name);
     }
@@ -188,7 +189,11 @@ open_tty(char *path)
 }
 
 static void
-init_screen(SCREEN *sp GCC_UNUSED, void *arg)
+init_screen(
+#if HAVE_USE_WINDOW
+              SCREEN *sp GCC_UNUSED,
+#endif
+              void *arg)
 {
     DITTO *target = (DITTO *) arg;
     int high, wide;
@@ -209,7 +214,7 @@ init_screen(SCREEN *sp GCC_UNUSED, void *arg)
        WINDOW *inner = derwin(outer, high - 2, wide - 2, 1, 1);
 
        box(outer, 0, 0);
-       mvwaddstr(outer, 0, 2, target->titles[k]);
+       MvWAddStr(outer, 0, 2, target->titles[k]);
        wnoutrefresh(outer);
 
        scrollok(inner, TRUE);
@@ -237,6 +242,7 @@ open_screen(DITTO * target, char **source, int length, int which1)
     target->which1 = which1;
     target->titles = source;
     target->length = length;
+    target->fifo.head = -1;
     target->screen = newterm((char *) 0,       /* assume $TERM is the same */
                             target->output,
                             target->input);
@@ -248,9 +254,15 @@ open_screen(DITTO * target, char **source, int length, int which1)
 }
 
 static int
-close_screen(SCREEN *sp GCC_UNUSED, void *arg GCC_UNUSED)
+close_screen(
+#if HAVE_USE_WINDOW
+               SCREEN *sp GCC_UNUSED,
+#endif
+               void *arg GCC_UNUSED)
 {
+#if HAVE_USE_WINDOW
     (void) sp;
+#endif
     (void) arg;
     return endwin();
 }
@@ -259,7 +271,11 @@ close_screen(SCREEN *sp GCC_UNUSED, void *arg GCC_UNUSED)
  * Read data from the 'source' screen.
  */
 static int
-read_screen(SCREEN *sp GCC_UNUSED, void *arg)
+read_screen(
+#if HAVE_USE_WINDOW
+              SCREEN *sp GCC_UNUSED,
+#endif
+              void *arg)
 {
     DDATA *data = (DDATA *) arg;
     DITTO *ditto = &(data->ditto[data->source]);
@@ -278,7 +294,11 @@ read_screen(SCREEN *sp GCC_UNUSED, void *arg)
  * Write all of the data that's in fifos for the 'target' screen.
  */
 static int
-write_screen(SCREEN *sp GCC_UNUSED, void *arg GCC_UNUSED)
+write_screen(
+#if HAVE_USE_WINDOW
+               SCREEN *sp GCC_UNUSED,
+#endif
+               void *arg GCC_UNUSED)
 {
     DDATA *data = (DDATA *) arg;
     DITTO *ditto = &(data->ditto[data->target]);
@@ -309,6 +329,7 @@ show_ditto(DITTO * data, int count, DDATA * ddata)
 {
     int n;
 
+    (void) data;
     for (n = 0; n < count; n++) {
        ddata->target = n;
        USING_SCREEN(data[n].screen, write_screen, (void *) ddata);
@@ -364,6 +385,8 @@ main(int argc, char *argv[])
     if ((data = typeCalloc(DITTO, (size_t) argc)) == 0)
        failed("calloc data");
 
+    assert(data != 0);
+
     for (j = 0; j < argc; j++) {
        open_screen(&data[j], argv, argc, j);
     }