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Addressed issue #123

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Andrew Pardoe 2015-09-26 18:13:22 -07:00
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@ -2082,9 +2082,10 @@ When I call `length(r)` should I test for `r==nullptr` first? Should the impleme
<a name="Rf-string"></a>
### F.19: Use a `zstring` or a `not_null<zstring>` to designate a C-style string
**Reason**: C-style strings are ubiquitous.
They are defined by convention: zero-terminated arrays of characters.
Functions are inconsistent in their use of `nullptr` and we must be more explicit.
**Reason**:
C-style strings are ubiquitous. They are defined by convention: zero-terminated arrays of characters.
We must distinguish C-style strings from a pointer to a single character or an old-fashioned pointer to an array of characters.
**Example**: Consider