X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fcompiler%2Fcompiler.h;h=1e0d8efbaacc1be66aa291f861560a513b69887a;hp=d57d814b3711213c978602cd46c7c6e2e67ccf7d;hb=737eacb13ce9550f9820cbc55eec8b38fa2fa6a4;hpb=1c005e1223d2f8f664ce4b3be6cd7eb4dd449844

diff --git a/ccan/compiler/compiler.h b/ccan/compiler/compiler.h
index d57d814b..1e0d8efb 100644
--- a/ccan/compiler/compiler.h
+++ b/ccan/compiler/compiler.h
@@ -20,6 +20,24 @@
 #define COLD
 #endif
 
+#if HAVE_ATTRIBUTE_NORETURN
+/**
+ * NORETURN - a function does not return
+ *
+ * Used to mark a function which exits; useful for suppressing warnings.
+ *
+ * Example:
+ * static void NORETURN fail(const char *reason)
+ * {
+ *	fprintf(stderr, "Error: %s (%s)\n", reason, strerror(errno));
+ *	exit(1);
+ * }
+ */
+#define NORETURN __attribute__((noreturn))
+#else
+#define NORETURN
+#endif
+
 #if HAVE_ATTRIBUTE_PRINTF
 /**
  * PRINTF_FMT - a function takes printf-style arguments