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/src/gpg-error.vers b/src/gpg-error.vers
index 347235f..ab3bbb0 100644
--- a/src/gpg-error.vers
+++ b/src/gpg-error.vers
@@ -158,6 +158,7 @@ GPG_ERROR_1.0 {
     _gpgrt_log_assert;
 
     gpgrt_realloc;
+    gpgrt_reallocarray;
     gpgrt_malloc;
     gpgrt_calloc;
     gpgrt_strdup;