X-Git-Url: https://git.distorted.org.uk/~mdw/mLib/blobdiff_plain/dd65cf2dc0244dd4130565db62d152a4bc57e6ec..e6591bec0938b76b8c02083eb6ba101aba4e1b7e:/utils/macros.h

diff --git a/utils/macros.h b/utils/macros.h
index 45420e2..73230bd 100644
--- a/utils/macros.h
+++ b/utils/macros.h
@@ -57,6 +57,8 @@
 	IGNORABLE extern char static_assert_failed[2*!!(cond) - 1]
 #endif
 
+#define COMMA ,
+
 /*----- String and character hacks ----------------------------------------*/
 
 #define CTYPE_HACK(func, ch) (func((unsigned char)(ch)))
@@ -94,6 +96,10 @@
 #  define IGNORABLE __attribute__((__unused__))
 #endif
 
+#if GCC_VERSION_P(3, 4) || CLANG_VERSION_P(3, 3)
+#  define MUST_CHECK __attribute__((__warn_unused_result__))
+#endif
+
 #if GCC_VERSION_P(4, 5) || CLANG_VERSION_P(3, 3)
 #  define DEPRECATED(msg) __attribute__((__deprecated__(msg)))
 #elif GCC_VERSION_P(3, 1)
@@ -223,6 +229,10 @@
 #  define IGNORABLE
 #endif
 
+#ifndef MUST_CHECK
+#  define MUST_CHECK
+#endif
+
 #ifndef GCC_WARNING
 #  define GCC_WARNING(warn)
 #endif