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author | Arnaud Gelas <arnaud_gelas@hms.harvard.edu> | 2011-04-30 12:39:48 (GMT) |
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committer | Arnaud Gelas <arnaud_gelas@hms.harvard.edu> | 2011-04-30 12:49:47 (GMT) |
commit | d9c196c1ad2b008b8f6628ace0f9f9273a2b5d26 (patch) | |
tree | 32c23b9e97b85057bf8d03205b1dd7ebcff9d7a4 /src/eval_env.h | |
parent | 13adc40187c21ef1dbba0b46cc865ebdfa2ab4ea (diff) | |
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fix warnings on Mac 10.5
structures had virtual functions but not virtual destructors
Diffstat (limited to 'src/eval_env.h')
-rw-r--r-- | src/eval_env.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/eval_env.h b/src/eval_env.h index b1b63ca..37f7b07 100644 --- a/src/eval_env.h +++ b/src/eval_env.h @@ -22,6 +22,7 @@ using namespace std; /// An interface for a scope for variable (e.g. "$foo") lookups. struct Env { + virtual ~Env() {} virtual string LookupVariable(const string& var) = 0; }; @@ -29,6 +30,7 @@ struct Env { /// as well as a pointer to a parent scope. struct BindingEnv : public Env { BindingEnv() : parent_(NULL) {} + virtual ~BindingEnv() {} virtual string LookupVariable(const string& var); void AddBinding(const string& key, const string& val); |