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authorJan Kratochvil <jan.kratochvil@redhat.com>2012-10-08 23:51:31 +0200
committerJan Kratochvil <jan.kratochvil@redhat.com>2012-10-08 23:51:31 +0200
commit1d67c0c87a56349f7a0169e6bef6385696d86af2 (patch)
treebd9c89e490cb7f7d06965e185aab913e3efb0ea9 /lib
parent07f3507442cb3f913000844025ca139925afe110 (diff)
downloadelfutils-1d67c0c87a56349f7a0169e6bef6385696d86af2.tar.gz
lib/
system.h (eu_static_assert): New macro. libdw/ cfi.c: New include system.h. (execute_cfi) (enough_registers): Clear new memory after realloc. Signed-off-by: Jan Kratochvil <jan.kratochvil@redhat.com>
Diffstat (limited to 'lib')
-rw-r--r--lib/ChangeLog4
-rw-r--r--lib/system.h7
2 files changed, 11 insertions, 0 deletions
diff --git a/lib/ChangeLog b/lib/ChangeLog
index 47e831ea..46eeeca0 100644
--- a/lib/ChangeLog
+++ b/lib/ChangeLog
@@ -1,3 +1,7 @@
+2012-10-08 Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ * system.h (eu_static_assert): New macro.
+
2012-01-21 Ulrich Drepper <drepper@gmail.com>
* Makefile.am (libeu_a_SOURCES): Add color.c.
diff --git a/lib/system.h b/lib/system.h
index 9ac01f89..d9adee9c 100644
--- a/lib/system.h
+++ b/lib/system.h
@@ -121,4 +121,11 @@ extern char *color_weak;
extern const char color_off[];
+/* A static assertion. This will cause a compile-time error if EXPR,
+ which must be a compile-time constant, is false. */
+
+#define eu_static_assert(expr) \
+ extern int never_defined_just_used_for_checking[(expr) ? 1 : -1] \
+ __attribute__ ((unused))
+
#endif /* system.h */