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2 commits

Author SHA1 Message Date
Leonardo de Moura
3e1fd06903 refactor(kernel/expr): remove 'null' expression, and operator bool for expression
After this commit, a value of type 'expr' cannot be a reference to nullptr.
This commit also fixes several bugs due to the use of 'null' expressions.

TODO: do the same for kernel objects, sexprs, etc.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-07 23:21:10 -08:00
Leonardo de Moura
1bf6051866 test(lua): expr LUA API test
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-11-13 15:29:31 -08:00