diff options
Diffstat (limited to 'base')
| -rw-r--r-- | base/basictypes.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/base/basictypes.h b/base/basictypes.h index 1e44303..f6b92ec 100644 --- a/base/basictypes.h +++ b/base/basictypes.h @@ -327,6 +327,17 @@ inline Dest bit_cast(const Source& source) { return dest; } +// Used to explicitly mark the return value of a function as unused. If you are +// really sure you don't want to do anything with the return value of a function +// that has been marked WARN_UNUSED_RESULT, wrap it with this. Example: +// +// scoped_ptr<MyType> my_var = ...; +// if (TakeOwnership(my_var.get()) == SUCCESS) +// IGNORE_RESULT(my_var.release()); +// +#define IGNORE_RESULT(x) \ + do { size_t unused = sizeof(x); unused = 0; } while (false) + // The following enum should be used only as a constructor argument to indicate // that the variable has static storage class, and that the constructor should // do nothing to its state. It indicates to the reader that it is legal to |