Hello world,
the attached test cases fixes a problematic invocation of
memcpy where src=NULL and n=0 by simply doing nothing
in the surrounding function if there is nothing to be done.
No test case, because this only shows up with a sanitized
libgfortran or under a debugger.
OK for trunk?
Regards
Thomas
2017-07-23 Thomas Koenig <[email protected]>
* io/unix.c (buf_write): Return early if there is
nothing to write.
Index: io/unix.c
===================================================================
--- io/unix.c (Revision 249936)
+++ io/unix.c (Arbeitskopie)
@@ -582,6 +582,9 @@
static ssize_t
buf_write (unix_stream *s, const void *buf, ssize_t nbyte)
{
+ if (nbyte == 0)
+ return 0;
+
if (s->ndirty == 0)
s->buffer_offset = s->logical_offset;
