From 7d5a9bd3aeed339cb1f1415a9da8fc09c74ca485 Mon Sep 17 00:00:00 2001 From: David Bremner Date: Mon, 23 May 2022 20:38:58 -0300 Subject: [PATCH] lib: define macro NODISCARD In either C++17 (or later) mode, or when running cppcheck, this can be used to selectively generate warnings about discarded return values. --- lib/notmuch-private.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/notmuch-private.h b/lib/notmuch-private.h index c63cfe5e..1c2290b2 100644 --- a/lib/notmuch-private.h +++ b/lib/notmuch-private.h @@ -750,6 +750,12 @@ _notmuch_talloc_steal (const void *new_ctx, const T *ptr) #undef talloc_steal #define talloc_steal _notmuch_talloc_steal #endif + +#if __cplusplus >= 201703L || __cppcheck__ +#define NODISCARD [[nodiscard]] +#else +#define NODISCARD /**/ +#endif #endif #endif -- 2.43.0