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| author | Sverker Eriksson <[email protected]> | 2015-02-17 19:21:06 +0100 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2015-03-12 19:15:24 +0100 |
| commit | af34cc859ae9979e9f4f8abf29646efd6b1c9c04 (patch) | |
| tree | eef6e1530e79e35ec6f9b2f00021cf59d6c7d027 | |
| parent | 7e3c3c7106095cc5afdbd5cd7e96b907784ada01 (diff) | |
| download | otp-af34cc859ae9979e9f4f8abf29646efd6b1c9c04.tar.gz otp-af34cc859ae9979e9f4f8abf29646efd6b1c9c04.tar.bz2 otp-af34cc859ae9979e9f4f8abf29646efd6b1c9c04.zip | |
erts: Add ERTS_UNDEF macro
| -rw-r--r-- | erts/emulator/beam/sys.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h index 828f5b427a..d2a8b9e7f4 100644 --- a/erts/emulator/beam/sys.h +++ b/erts/emulator/beam/sys.h @@ -188,6 +188,16 @@ __decl_noreturn void __noreturn erl_assert_error(const char* expr, const char *f # define ASSERT(e) ((void) 1) #endif +/* ERTS_UNDEF can be used to silence false warnings about + * "variable may be used uninitialized" while keeping the variable + * marked as undefined by valgrind. + */ +#ifdef VALGRIND +# define ERTS_UNDEF(V,I) +#else +# define ERTS_UNDEF(V,I) V = I +#endif + /* * Compile time assert * (the actual compiler error msg can be a bit confusing) |