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Fix Inconsistent definition of czstring in comments

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Comments in sections  SL.str.3 and GSL.view disagree on whether czstring may be the nullptr.

This PR fixes the first comment definition in SL.str.3 that czstring `is a C-style string that is not the nullptr`

### SL.str.3: Use zstring or czstring to refer to a C-style, zero-terminated, sequence of characters
```
void f1(zstring s);     // s is a C-style string or the nullptr
void f1(czstring s);    // s is a C-style string that is not the nullptr
```
### GSL.view: Views
`zstring` // a `char*` supposed to be a C-style string; that is, a zero-terminated sequence of `char` or `nullptr`
`czstring` // a `const char*` supposed to be a C-style string; that is, a zero-terminated sequence of const `char` or `nullptr`
This commit is contained in:
Will Wray 2017-07-03 12:13:40 -04:00 committed by GitHub
parent 863dcae05e
commit 5ffabce718
1 changed files with 1 additions and 1 deletions
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CppCoreGuidelines.md
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@ -18755,7 +18755,7 @@ Distinguishing these alternatives prevents misunderstandings and bugs.
All we know is that it is supposed to be the nullptr or point to at least one character All we know is that it is supposed to be the nullptr or point to at least one character
void f1(zstring s); // s is a C-style string or the nullptr void f1(zstring s); // s is a C-style string or the nullptr
void f1(czstring s); // s is a C-style string that is not the nullptr void f1(czstring s); // s is a C-style string constant or the nullptr
void f1(std::byte* s); // s is a pointer to a byte (C++17) void f1(std::byte* s); // s is a pointer to a byte (C++17)
##### Note ##### Note