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lib: define macro NODISCARD

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In either C++17 (or later) mode, or when running cppcheck, this can be
used to selectively generate warnings about discarded return values.
This commit is contained in:
David Bremner 2022-05-23 20:38:58 -03:00
parent bc80ff829a
commit 7d5a9bd3ae
1 changed files with 6 additions and 0 deletions
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6
lib/notmuch-private.h
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@ -750,6 +750,12 @@ _notmuch_talloc_steal (const void *new_ctx, const T *ptr)
#undef talloc_steal #undef talloc_steal
#define talloc_steal _notmuch_talloc_steal #define talloc_steal _notmuch_talloc_steal
#endif #endif
#if __cplusplus >= 201703L || __cppcheck__
#define NODISCARD [[nodiscard]]
#else
#define NODISCARD /**/
#endif
#endif #endif
#endif #endif