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authorSverker Eriksson <[email protected]>2019-04-03 21:16:59 +0200
committerSverker Eriksson <[email protected]>2019-04-17 19:09:12 +0200
commit6465de7e3a5393a80ed0e2c63f012fd126de706f (patch)
treef85198d2afe765a8f3b7c94ed31b36830346b006 /lib/erl_interface/src/misc/ei_compat.c
parent46aa940b9d771c4806aacaf065c2f637474e9815 (diff)
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erl_interface: Add bitstring and export fun support
Diffstat (limited to 'lib/erl_interface/src/misc/ei_compat.c')
-rw-r--r--lib/erl_interface/src/misc/ei_compat.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/lib/erl_interface/src/misc/ei_compat.c b/lib/erl_interface/src/misc/ei_compat.c
index ff94e144ee..787895992e 100644
--- a/lib/erl_interface/src/misc/ei_compat.c
+++ b/lib/erl_interface/src/misc/ei_compat.c
@@ -22,14 +22,22 @@
#include "ei.h"
#include "ei_internal.h"
-#define EI_COMPAT_NO_REL (~((unsigned) 0))
+#include <limits.h>
-static unsigned compat_rel = EI_COMPAT_NO_REL;
+#ifndef EI_COMPAT
+# define EI_COMPAT UINT_MAX
+#endif
+
+static unsigned compat_rel = EI_COMPAT;
void
ei_set_compat_rel(unsigned rel)
{
- if (compat_rel == EI_COMPAT_NO_REL)
- compat_rel = rel;
+ compat_rel = rel;
+}
+
+int ei_internal_use_21_bitstr_expfun(void)
+{
+ return compat_rel < 22;
}