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0 pointscpeterso15y ago0 comments

But your exception-safe C++ code soon becomes bloated with shared_ptr and unique_ptr templates and copy ctors. Almost any C++ function, overloaded operator, or some implicit temporary object's ctor can throw an exception without warning. You must use RAII everywhere for every "resource".

Exception-safe RAII is pretty much an all-or-nothing affair.

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johnny53115y ago

Not sure what you mean with copy ctor bloat, but for your_flavor_of_smart_ptr, that's what the typedef keyword is for.

A common idiom I use is to typedef a class's preferred smart-pointer as ptr_t within the class namespace. Passing them around now looks like:

void some_function(my_class::ptr_t);

Exception safe, clear semantics, & no bloat.

blub15y ago

"But your exception-safe C++ code soon becomes bloated with shared_ptr and unique_ptr templates and copy ctors."

You need to prove that, I think it's a bogus claim. There is no reason why good template code should be any larger than its hand-written equivalent. Any decent optimizing compiler will take care of the rest.

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