core: New function gpgrt_reallocarray.

* src/init.c (_gpgrt_reallocarray): New.
* src/visibility.c (gpgrt_reallocarray): New.
* src/gpg-error.vers, src/gpg-error.def.in: Add new function.
* src/gpg-error.h.in: Add new interface.
* tests/t-malloc.c: New.
* tests/Makefile.am (TESTS): Add new test.
--

Note that this function is different from the glibc function because
it has an extra parameter which allows to clear the new elements.  A
realloc after a calloc with forgotten memset after it is a common
source of error, thus we introduce this slightly different function.

Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/NEWS b/NEWS
index 9e32030..2f633e4 100644
--- a/NEWS
+++ b/NEWS
@@ -5,6 +5,7 @@ Noteworthy changes in version 1.38 (unreleased) [C28/A28/R_]
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  gpgrt_fnameconcat                NEW.
  gpgrt_absfnameconcat             NEW.
+ gpgrt_reallocarray               NEW.
  gpgrt_set_confdir                NEW.
  gpgrt_argparser                  NEW.
  ARGPARSE_FLAG_SYS                NEW.