- **labels**: --> Fixed_2_21_0
- **status**: Started --> Fixed
- **Patch**: push -->
- **Type**: --> Enhancement
- **Comment**:
```text
commit cd83bbc1eb44224ab3c0268d78a862e3d9987988
Author: Dan Eble <nine.fierce.ball...@gmail.com>
Date: Mon Nov 4 18:51:53 2019 -0500
Issue 5694/5: Dot_configuration "has a" instead of "is a" std::map
It is considered poor form to create subclasses of standard containers
because they lack virtual destructors. Inheriting privately from
std::map avoids potential problems by preventing Dot_configuration from
being treated as a std::map from the outside. (I didn't find any actual
problems in this case.)
Limiting the Dot_configuration interface to just the map methods that
are actually used makes it easier to understand how Dot_configuration is
used without searching the entire code.
```
```text
commit 2c7fbb3196f28246a389c8e96d6aa5fdd02b3938
Author: Dan Eble <nine.fierce.ball...@gmail.com>
Date: Mon Nov 4 18:51:53 2019 -0500
Issue 5694/4: Dot_configuration: use range-for loops
```
```text
commit d720cf21b540e58c81c82c04584def0b254ef21e
Author: Dan Eble <nine.fierce.ball...@gmail.com>
Date: Sat Jan 25 10:43:59 2020 -0500
Issue 5694/3: Dot_configuration: reduce repetition using a lambda function
```
```text
commit 1c3de1ef82563239979642194329e74669e3c62a
Author: Dan Eble <nine.fierce.ball...@gmail.com>
Date: Mon Nov 4 18:51:53 2019 -0500
Issue 5694/2: Dot_configuration: swap instead of copy
```
```text
commit 15d5a6cf2cc6eb8621a9f06874684464defb6bf8
Author: Dan Eble <nine.fierce.ball...@gmail.com>
Date: Sat Jan 25 10:42:37 2020 -0500
Issue 5694/1: Dot_configuration: iterate properly in reverse
The previous code would have malfunctioned for an empty container.
```
---
** [issues:#5694] Dot_configuration maintenance**
**Status:** Fixed
**Labels:** Fixed_2_21_0
**Created:** Sat Jan 25, 2020 04:12 PM UTC by Dan Eble
**Last Updated:** Wed Jan 29, 2020 06:00 AM UTC
**Owner:** Dan Eble
1: iterate properly in reverse
The previous code would have malfunctioned for an empty container.
2: swap instead of copy
3: reduce repetition using a lambda function
4: use range-for loops
5: Dot_configuration "has a" instead of "is a" std::map
It is considered poor form to create subclasses of standard containers
because they lack virtual destructors. Inheriting privately from
std::map avoids potential problems by preventing Dot_configuration from
being treated as a std::map from the outside. (I didn't find any actual
problems in this case.)
Limiting the Dot_configuration interface to just the map methods that
are actually used makes it easier to understand how Dot_configuration is
used without searching the entire code.
https://codereview.appspot.com/577380046
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