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Thread: static members and error : unresolved external symbol "private: static class

  1. 29th June 2013, 10:51 #1
    smemamian
    smemamian is offline Novice
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    Default Re: static members and error : unresolved external symbol "private: static class

    hi

    I do not understand why I get this error message:

    stringclass.obj:-1: error: LNK2001: unresolved external symbol "private: static class QString StringClass:ne" (?one@StringClass@@0VQString@@A)
    .
    .
    .
    stringclass.obj:-1: error: LNK2001: unresolved external symbol "private: static class QString StringClass::twenty" (?twenty@StringClass@@0VQString@@A)
    I am a newbie and this code is for practice:

    Qt Code: 
    1. #ifndef STRINGCLASS_H
    2. #define STRINGCLASS_H
    3. #include <QString>
    4. class StringClass
    5. {
    6. private :
    7.  
    8.     static QString one,two,three,four,five,six,seven
    9.     ,eight,nine,ten,eleven,twelve,thirteen,fourteen,
    10.     fifteen,sixteen,seventeen,eighteen,nineteen,twenty;
    11. public:
    12.     StringClass();
    13.     static void setString(QString &One, QString &Two, QString &Three,
    14.                           QString &Four, QString &Five, QString &Six,
    15.                           QString &Seven, QString &Eight, QString &Nine,
    16.                           QString &Ten, QString &Eleven, QString Twelve, QString &Thirteen
    17.                           , QString &Fourteen , QString &Fifteen, QString &Sixteen, QString &Seventeen
    18.                           , QString &Eighteen , QString &Nineteen , QString &Twenty);
    19.  
    20.  
    21.     static QString getStringOne();
    22.     static QString getStringTwo();
    23.     static QString getStringThree();
    24.     static QString getStringFour();
    25.     static QString getStringFive();
    26.     static QString getStringSix();
    27.     static QString getStringSeven();
    28.     static QString getStringEight();
    29.     static QString getStringNine();
    30.     static QString getStringTen();
    31.     static QString getStringEleven();
    32.     static QString getStringTwelve();
    33.     static QString getStringThirteen();
    34.     static QString getStringFourteen();
    35.     static QString getStringFifteen();
    36.     static QString getStringSixteen();
    37.     static QString getStringSeventeen();
    38.     static QString getStringEighteen();
    39.     static QString getStringNineteen();
    40.     static QString getStringTwenty();
    41.  
    42.  
    43. };
    44.  
    45. #endif // STRINGCLASS_H
    To copy to clipboard, switch view to plain text mode 

    Qt Code: 
    1. #include "stringclass.h"
    2.  
    3. StringClass::StringClass()
    4. {
    5. }
    6.  
    7. void StringClass::setString(QString &One, QString &Two, QString &Three,
    8.                                    QString &Four, QString &Five, QString &Six,
    9.                                    QString &Seven, QString &Eight, QString &Nine
    10.                                    , QString &Ten, QString &Eleven, QString Twelve
    11.                                    , QString &Thirteen, QString &Fourteen, QString &Fifteen,
    12.                                    QString &Sixteen, QString &Seventeen, QString &Eighteen,
    13.                                    QString &Nineteen, QString &Twenty)
    14. {
    15.     one = One ;
    16.     two = Two ;
    17.     three = Three ;
    18.     four = Four ;
    19.     five = Five ;
    20.     six = Six ;
    21.     seven = Seven ;
    22.     eight = Eight ;
    23.     nine = Nine ;
    24.     ten = Ten ;
    25.     eleven = Eleven ;
    26.     twelve = Twelve ;
    27.     thirteen = Thirteen ;
    28.     fourteen = Fourteen ;
    29.     fifteen = Fifteen ;
    30.     sixteen = Sixteen ;
    31.     seventeen = Seventeen ;
    32.     eighteen = Eighteen ;
    33.     nineteen = Nineteen ;
    34.     twenty = Twenty ;
    35. }
    36.  
    37.  
    38. QString StringClass::getStringOne()
    39. {
    40.     return one ;
    41. }
    42.  
    43. QString StringClass::getStringTwo()
    44. {
    45.     return two;
    46. }
    47.  
    48. QString StringClass::getStringThree()
    49. {
    50.     return three ;
    51. }
    52.  
    53. QString StringClass::getStringFour()
    54. {
    55.     return four;
    56. }
    57.  
    58. QString StringClass::getStringFive()
    59. {
    60.     return five ;
    61. }
    62.  
    63. QString StringClass::getStringSix()
    64. {
    65.     return six ;
    66. }
    67.  
    68. QString StringClass::getStringSeven()
    69. {
    70.     return seven;
    71. }
    72.  
    73. QString StringClass::getStringEight()
    74. {
    75.     return eight;
    76. }
    77.  
    78. QString StringClass::getStringNine()
    79. {
    80.     return nine;
    81. }
    82.  
    83. QString StringClass::getStringTen()
    84. {
    85.     return ten;
    86. }
    87.  
    88. QString StringClass::getStringEleven()
    89. {
    90.     return eleven;
    91. }
    92.  
    93. QString StringClass::getStringTwelve()
    94. {
    95.     return twelve;
    96. }
    97.  
    98. QString StringClass::getStringThirteen()
    99. {
    100.     return thirteen;
    101. }
    102.  
    103. QString StringClass::getStringFourteen()
    104. {
    105.     return fourteen;
    106. }
    107.  
    108. QString StringClass::getStringFifteen()
    109. {
    110.     return fifteen;
    111. }
    112.  
    113. QString StringClass::getStringSixteen()
    114. {
    115.     return sixteen;
    116. }
    117.  
    118. QString StringClass::getStringSeventeen()
    119. {
    120.     return seventeen;
    121. }
    122.  
    123. QString StringClass::getStringEighteen()
    124. {
    125.     return eighteen;
    126. }
    127.  
    128. QString StringClass::getStringNineteen()
    129. {
    130.     return nineteen;
    131. }
    132.  
    133. QString StringClass::getStringTwenty()
    134. {
    135.     return twelve;
    136. }
    To copy to clipboard, switch view to plain text mode 

    Added after 58 minutes:


    solved :

    QString StringClass:ne = NULL ;
    .
    .
    .
    Last edited by smemamian; 29th June 2013 at 10:51.
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  2. 29th June 2013, 16:23 #2
    anda_skoa
    anda_skoa is offline Administrator
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    Default Re: static members and error : unresolved external symbol "private: static class

    Just
    Qt Code: 
    1. QString StringClass::one;
    To copy to clipboard, switch view to plain text mode 
    will do as well, QString has a default constructor.
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