Marcel Taeumel uploaded a new version of FFI-Kernel to project FFI: http://source.squeak.org/FFI/FFI-Kernel-mt.121.mcz
==================== Summary ====================
Name: FFI-Kernel-mt.121 Author: mt Time: 30 April 2021, 4:02:17.500442 pm UUID: d2b4689e-ac74-5843-9526-b4e752914eb5 Ancestors: FFI-Kernel-mt.120
Fixes off-by-one regression.
=============== Diff against FFI-Kernel-mt.120 ===============
Item was changed: ----- Method: ExternalData>>from:to: (in category 'accessing') ----- from: firstIndex to: lastIndex "Only copy data if already in object memory, that is, as byte array. Only check size if configured."
| byteOffset numElements byteSize newType | ((1 > firstIndex) or: [size notNil and: [lastIndex > size]]) ifTrue: [^ self errorSubscriptBounds: lastIndex].
byteOffset := ((firstIndex-1) * self contentType byteSize)+1. numElements := lastIndex - firstIndex + 1. byteSize := numElements * self contentType byteSize. "For portions of a null-terminated C string, change the type from char* to byte* to avoid confusion." newType := self containerType = ExternalType string ifTrue: [ExternalType byte asPointerType] ifFalse: [self containerType "No change"].
^ lastIndex < firstIndex ifTrue: [ handle isExternalAddress ifTrue: [(ExternalData fromHandle: handle + (byteOffset - 1) "Keep pointer." type: newType) size: 0; yourself] ifFalse: [(ExternalData fromHandle: #[] "Empty memory" type: newType) size: 0; yourself]] ifFalse: [ handle isExternalAddress ifTrue: [(ExternalData fromHandle: handle + (byteOffset - 1) type: newType) size: numElements; yourself] ifFalse: [(ExternalData + fromHandle: (handle copyFrom: byteOffset to: byteOffset+byteSize-1) - fromHandle: (handle copyFrom: byteOffset to: byteOffset+byteSize) type: newType) size: numElements; yourself]]!