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Add link to discussion on object lifetime

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Closes #52
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Jason Turner
2016-09-28 14:12:27 -06:00
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08-Considering_Performance.md
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@@ -265,6 +265,8 @@ for (int i = 0; i < 15; ++i)
// obj is still taking up memory for no reason
```
[This topic has an associated discussion thread](https://github.com/lefticus/cppbestpractices/issues/52).
### Prefer `double` to `float`, But Test First
Depending on the situation and the compiler's ability to optimize, one may be faster over the other. Choosing `float` will result in lower precision and may be slower due to conversions. On vectorizable operations `float` may be faster if you are able to sacrifice precision.