libzypp  13.10.6
Errno.h
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1 /*---------------------------------------------------------------------\
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12 #ifndef ZYPP_BASE_ERRNO_H
13 #define ZYPP_BASE_ERRNO_H
14 
15 #include <cerrno>
16 #include <iosfwd>
17 
18 #include "zypp/base/String.h"
19 
21 namespace zypp
22 {
23 
25  class Errno
26  {
27  public:
29  Errno() : _errno( errno ) {}
30 
39  Errno( bool error_r ) : _errno( error_r ? errno : 0 ) {}
40 
42  Errno( int errno_r ) : _errno( errno_r ) {}
43 
44  public:
46  int get() const { return _errno; }
47 
49  operator int() const { return get(); }
50 
52  std::string asString() const { return str::form( "[%d-%s]", _errno, ::strerror(_errno) ); }
53 
54  private:
55  int _errno;
56  };
57 
59  inline std::ostream & operator<<( std::ostream & str, const Errno & obj )
60  { return str << obj.asString(); }
61 
63 } // namespace zypp
65 #endif // ZYPP_BASE_ERRNO_H
zypp::Errno
Convenience errno wrapper.
Definition: Errno.h:25
zypp::Errno::Errno
Errno()
Default ctor: errno.
Definition: Errno.h:29
zypp::Errno::Errno
Errno(bool error_r)
Ctor set to errno if error condition, else 0.
Definition: Errno.h:39
zypp::Errno::Errno
Errno(int errno_r)
Ctor taking an explicit errno value.
Definition: Errno.h:42
zypp::Errno::asString
std::string asString() const
Return human readable error string.
Definition: Errno.h:52
zypp::str::form
std::string form(const char *format,...)
Printf style construction of std::string.
Definition: String.cc:34
zypp::Errno::operator<<
std::ostream & operator<<(std::ostream &str, const Errno &obj)
Definition: Errno.h:59
zypp::Errno::_errno
int _errno
Definition: Errno.h:55
zypp::str::strerror
std::string strerror(int errno_r)
Return string describing the error_r code.
Definition: String.cc:51