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Clarify namespaces in coding style.

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chriseth 2018-04-19 10:36:04 +02:00 committed by Alex Beregszaszi
parent 2546a274ca
commit 89c0f48194
1 changed files with 13 additions and 6 deletions
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19
CODING_STYLE.md
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@ -49,21 +49,28 @@ cout << "some very long string that contains completely irrelevant text that tal
## 1. Namespaces
1. No `using namespace` declarations in header files.
2. All symbols should be declared in a namespace except for final applications.
3. Use anonymous namespaces for helpers whose scope is a cpp file only.
4. Preprocessor symbols should be prefixed with the namespace in all-caps and an underscore.
2. Use `using namespace std;` in cpp files, but avoid importing namespaces from boost and others.
3. All symbols should be declared in a namespace except for final applications.
4. Use anonymous namespaces for helpers whose scope is a cpp file only.
5. Preprocessor symbols should be prefixed with the namespace in all-caps and an underscore.
Yes:
Only in the header:
```cpp
#include <cassert>
namespace myNamespace
{
std::tuple<float, float> meanAndSigma(std::vector<float> const& _v);
}
```
No:
Only in the cpp file:
```cpp
#include <cassert>
using namespace std;
tuple<float, float> meanAndSigma(vector<float> const& _v);
tuple<float, float> myNamespace::meanAndSigma(vector<float> const& _v)
{
// ...
}
```
## 2. Preprocessor