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Merge #8177: developer notes: updates for C++11

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654a211 developer notes: updates for C++11 (Kaz Wesley)
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Wladimir J. van der Laan 2016-06-10 11:29:17 +02:00
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@ -265,7 +265,7 @@ General C++
the `.h` to the `.cpp` should not result in build errors the `.h` to the `.cpp` should not result in build errors
- Use the RAII (Resource Acquisition Is Initialization) paradigm where possible. For example by using - Use the RAII (Resource Acquisition Is Initialization) paradigm where possible. For example by using
`scoped_pointer` for allocations in a function. `unique_ptr` for allocations in a function.
- *Rationale*: This avoids memory and resource leaks, and ensures exception safety - *Rationale*: This avoids memory and resource leaks, and ensures exception safety
@ -284,10 +284,9 @@ C++ data structures
- *Rationale*: Behavior is undefined. In C++ parlor this means "may reformat - *Rationale*: Behavior is undefined. In C++ parlor this means "may reformat
the universe", in practice this has resulted in at least one hard-to-debug crash bug the universe", in practice this has resulted in at least one hard-to-debug crash bug
- Watch out for vector out-of-bounds exceptions. `&vch[0]` is illegal for an - Watch out for out-of-bounds vector access. `&vch[vch.size()]` is illegal,
empty vector, `&vch[vch.size()]` is always illegal. Use `begin_ptr(vch)` and including `&vch[0]` for an empty vector. Use `vch.data()` and `vch.data() +
`end_ptr(vch)` to get the begin and end pointer instead (defined in vch.size()` instead.
`serialize.h`)
- Vector bounds checking is only enabled in debug mode. Do not rely on it - Vector bounds checking is only enabled in debug mode. Do not rely on it