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39 
40 #ifndef QSYSTEMERROR_P_H
41 #define QSYSTEMERROR_P_H
42 
43 //
44 //  W A R N I N G
45 //  -------------
46 //
47 // This file is not part of the Qt API.  It exists purely as an
48 // implementation detail.  This header file may change from version to
49 // version without notice, or even be removed.
50 //
51 // We mean it.
52 //
53 
54 #include <QtCore/private/qglobal_p.h>
55 #include <qstring.h>
56 
57 QT_BEGIN_NAMESPACE
58 
59 class QSystemError
60 {
61 public:
62     enum ErrorScope
63     {
64         NoError,
65         StandardLibraryError,
66         NativeError
67     };
68 
QSystemError(int error,ErrorScope scope)69     Q_DECL_CONSTEXPR explicit QSystemError(int error, ErrorScope scope)
70         : errorCode(error), errorScope(scope)
71     {
72     }
73     Q_DECL_CONSTEXPR QSystemError() = default;
74 
toString()75     QString toString() const { return string(errorScope, errorCode); }
scope()76     Q_DECL_CONSTEXPR ErrorScope scope() const { return errorScope; }
error()77     Q_DECL_CONSTEXPR int error() const { return errorCode; }
78 
79     static Q_CORE_EXPORT QString string(ErrorScope errorScope, int errorCode);
80     static Q_CORE_EXPORT QString stdString(int errorCode = -1);
81 #ifdef Q_OS_WIN
82     static Q_CORE_EXPORT QString windowsString(int errorCode = -1);
83 #endif
84 
85     //data members
86     int errorCode = 0;
87     ErrorScope errorScope = NoError;
88 };
89 
90 QT_END_NAMESPACE
91 
92 #endif // QSYSTEMERROR_P_H
93