Reading binary file size in bytes and assigning it to uint16_t

Hi All,

In below piece of code, I am trying to read the size of a binary file in bytes and assign it to a variable of type uint16_t.

Code:

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QFile f (fileName);
uint16_t readSize;
 
f.open (QIODevice::ReadOnly);
qDebug()<<"size of a binary file "<<fileName<< "is in bytes"<<f.size ()<<"\n"; ===> 131071 (expected value)
 
readSize = f.size ();
qDebug()<<"size of a binary file "<<readSize<<"\n";====> 65535 (Incorrect value)
 
/* updating file size to a struct variable of type uint16_t 
req.Size = f.size ();====> 65535 (Incorrect value)

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When I change readSize data type from int then

Code:

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readSize = f.size ();
qDebug()<<"size of a binary file "<<readSize<<"\n";====> 131071

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Is this because of data type uint16_t restricting? or size of the file exceeding the range of uint16_t?

Quote:

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Originally Posted by anita.niharika@gmail.com

Is this because of data type uint16_t restricting?

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Yes - you can't represent 131071 with only 16bits.