Coding problem

[Daniel Drijard]

Hello,

I have a problem. I use macOS SIERRA (10.12.6) on an iMac Retina bought 9/2015.
The following shows my code. The program blows up in this routine, pointing to Adr(i).

Cordially,
Daniel

•••••••••••••••
Read4 Byref NbWords as integer, Byref Adr() as integer
dim i as integer
for i=1 to NbWords
Adr(i)=MyBin.readint32
next

MyBin was declared as BinaryStream
•••••••••••••••

Daniel Drijard
Thoiry téléphone :
04 50 41 22 75
international
+33/4 50 41 22 75
Courriel :
***@cern.ch
Thoiry F-01710

[Jon Ogden]

What is blowing up? Is MyBin not Nil? Has it been opened?

What is the error message?

Sent from my iPhone

Post by Daniel Drijard
Hello,
I have a problem. I use macOS SIERRA (10.12.6) on an iMac Retina bought 9/2015.
The following shows my code. The program blows up in this routine, pointing to Adr(i).
Cordially,
Daniel
•••••••••••••••
Read4 Byref NbWords as integer, Byref Adr() as integer
dim i as integer
for i=1 to NbWords
Adr(i)=MyBin.readint32
next
MyBin was declared as BinaryStream
•••••••••••••••
Daniel Drijard
04 50 41 22 75
international
+33/4 50 41 22 75
Thoiry F-01710
48, rue des Savoies

[Jean-Pierre DOUCET]

Hi Daniel,
From the doco :
If you try to access an element of an array that does not exist, you will get an OutOfBoundsException <http://developer.xojo.com/outofboundsexception>. Here are some examples that would raise the exception:
aNames(5) = "Tom" ' this exceeds the upper bound of aNames
aFirstName(1) = "Bill" ' aFirstName is still empty
Use the methods Append <http://developer.xojo.com/arrays$Append> and Insert <http://developer.xojo.com/arrays$Insert> to add additional elements to arrays. These methods are the only ways to add elements to empty arrays, but they can also be used to extend the size of any single-dimension array.
Hence : Adr.Append (MyBin.readint32)

Post by Daniel Drijard
Hello,
I have a problem. I use macOS SIERRA (10.12.6) on an iMac Retina bought 9/2015.
The following shows my code. The program blows up in this routine, pointing to Adr(i).
Cordially,
Daniel
•••••••••••••••
Read4 Byref NbWords as integer, Byref Adr() as integer
dim i as integer
for i=1 to NbWords
Adr(i)=MyBin.readint32
next
MyBin was declared as BinaryStream
•••••••••••••••
Daniel Drijard
04 50 41 22 75
international
+33/4 50 41 22 75
Thoiry F-01710
48, rue des Savoies

Cordially,
JPD

[Markus Winter]

Post by Daniel Drijard
Read4 Byref NbWords as integer, Byref Adr() as integer
dim i as integer
for i=1 to NbWords
Adr(i)=MyBin.readint32
next

Are you sure Adr() doesn‘t start at zero and goes to NbWords - 1 ?

Test by checking ubound of Adr()

Markus