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  1. Qt
  2. QTBUG-105879

QString::toInt returns 0

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    Description

      When running the code below 

      int dataOriginal = 0x80000001; 
QString dataStr = QString::number(dataOriginal, 16); 
bool ok;
int dataInt = dataStr.toInt(&ok, 16);

      the result ends up

      Qt 5.15.10 

      dataOriginal : (hex) ffffffff080000001
dataStr : "ffffffff080000001"
dataInt : 0  
ok : false

      As a reference the result in Qt6.3.1 is

      dataOriginal : (hex) ffffffff080000001
dataStr : "-7fffffff"
dataInt : (hex) ffffffff080000001
ok : true

      How to reproduce

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-53706 QString::number(-17, 16) should return "-11" not "0xffffffffffffffef"

          • P4: Low - Would be nice to fix, but it's not very important.
          • Closed

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              thiago Thiago Macieira
              nagrohn Nahomi Gröhn (Inactive)
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                Created:
                Updated:
                Resolved: