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Remove throws() from synopsis; document system_error

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This commit is contained in:
Peter Dimov
2018-10-03 00:24:10 +03:00
parent fb44b43f0a
commit d13fa54450
1 changed files with 51 additions and 10 deletions
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61
doc/system/reference.adoc
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@ -198,9 +198,6 @@ namespace boost {
std::size_t hash_value( const error_code & ec ); std::size_t hash_value( const error_code & ec );
} // namespace system } // namespace system
system::error_code & throws();
} // namespace boost } // namespace boost
``` ```
@ -884,18 +881,62 @@ namespace boost
{ {
public: public:
system_error( error_code ec ); explicit system_error( error_code ec );
system_error( error_code ec, const char * what_arg ); system_error( error_code ec, const char * what_arg );
system_error( error_code ec, const std::string & what_arg ); system_error( error_code ec, const std::string & what_arg );
system_error( int ev, const error_category & ecat,
const char * what_arg );
system_error( int ev, const error_category & ecat,
const std::string & what_arg );
system_error( int ev, const error_category & ecat );
const error_code & code() const noexcept; system_error( int ev, const error_category & ecat );
system_error( int ev, const error_category & ecat,
const char * what_arg );
system_error( int ev, const error_category & ecat,
const std::string & what_arg );
error_code code() const noexcept;
const char * what() const noexcept; const char * what() const noexcept;
}; };
} }
} }
``` ```
#### Constructors
```
explicit system_error( error_code ec );
system_error( error_code ec, const char * what_arg );
system_error( error_code ec, const std::string & what_arg );
```
[none]
* {blank}
+
Ensures: :: `code() == ec`.
```
system_error( int ev, const error_category & ecat,
const char * what_arg );
system_error( int ev, const error_category & ecat,
const std::string & what_arg );
system_error( int ev, const error_category & ecat );
```
[none]
* {blank}
+
Ensures: :: `code() == error_code( ev, ecat )`.
#### Observers
```
error_code code() const noexcept;
```
[none]
* {blank}
+
Returns: :: `ec` or `error_code( ev, ecat )`, from the constructor, as appropriate.
```
const char * what() const noexcept;
```
[none]
* {blank}
+
Returns: :: A null-terminated character string incorporating the arguments supplied
in the constructor, typically of the form `what_arg + ": " + code.message()`.