X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/mLib/blobdiff_plain/2eea69731acfd2491d67e84edaa078f24c48c96b..5e80901ea39f40c1763ee64dae80fb0a89210db3:/utils/macros.h

diff --git a/utils/macros.h b/utils/macros.h
index 5f432f7..9e27a48 100644
--- a/utils/macros.h
+++ b/utils/macros.h
@@ -34,6 +34,8 @@
 
 /*----- Header files ------------------------------------------------------*/
 
+#include <assert.h>
+
 #ifndef MLIB_COMPILER_H
 #  include "compiler.h"
 #endif
@@ -48,6 +50,13 @@
 #define MLIB__GLUE(x, y) x##y
 #define GLUE(x, y) MLIB__GLUE(x, y)
 
+#ifdef static_assert
+#  define STATIC_ASSERT(cond, msg) static_assert(cond, msg)
+#else
+#  define STATIC_ASSERT(cond, msg)					\
+	IGNORABLE extern char static_assert_failed[2*!!(cond) - 1]
+#endif
+
 /*----- Compiler diagnostics ----------------------------------------------*/
 
 /* --- Compiler-specific definitions --- */