[glib: 1/10] Fix signedness warnings in gio/ginputstream.c

[Sebastian Dröge <sdroege src gnome org>]

commit f2be8c74e547984b6dae3b3794e17ad37afbe056
Author: Emmanuel Fleury <emmanuel fleury gmail com>
Date:   Thu Apr 15 10:51:33 2021 +0200

    Fix signedness warnings in gio/ginputstream.c
    
    gio/ginputstream.c: In function ‘g_input_stream_real_skip’:
    gio/ginputstream.c:431:21: warning: comparison of integer expressions of
    different signedness: ‘goffset’ {aka ‘long int’} and ‘long unsigned int’
      431 |           if (start > G_MAXSIZE - count || start + count > end)
          |                     ^
    gio/ginputstream.c:431:58: warning: comparison of integer expressions of
    different signedness: ‘long unsigned int’ and ‘goffset’ {aka ‘long int’}
      431 |           if (start > G_MAXSIZE - count || start + count > end)
          |                                                          ^

 gio/ginputstream.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/gio/ginputstream.c b/gio/ginputstream.c
index 9330169dc..a40c7d9c4 100644
--- a/gio/ginputstream.c
+++ b/gio/ginputstream.c
@@ -427,8 +427,10 @@ g_input_stream_real_skip (GInputStream  *stream,
                            NULL))
         {
           end = g_seekable_tell (seekable);
+          g_assert (start >= 0);
           g_assert (end >= start);
-          if (start > G_MAXSIZE - count || start + count > end)
+          if ((guint64) start > (G_MAXSIZE - count) ||
+              (start + count) > (guint64) end)
             {
               stream->priv->pending = TRUE;
               return end - start;