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After upgrade to Xcode Version 10.2 (10E125),Fatal error when using range.upperBound.samePosition(in: utf16)

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1

After upgrade to Xcode Version 10.2 (10E125),
progress Fatal error at range.upperBound.samePosition(in: utf16)

extension String 

 //Range => NSRange
 func nsRange(from range: Range<String.Index>) -> NSRange 
 guard let to = range.upperBound.samePosition(in: utf16) else 
 return NSMakeRange(0, 0)
 

 guard let from = range.lowerBound.samePosition(in: utf16) else 
 return NSMakeRange(0, 0)
 

 return NSMakeRange(utf16.distance(from: utf16.startIndex, to: from), utf16.distance(from: from, to: to))
 

 //NSRange =>Range
 func range(from range: NSRange) -> Range<String.Index>? 
 guard let from16 = utf16.index(utf16.startIndex, offsetBy: range.location, limitedBy: utf16.endIndex) else return nil 
 guard let to16 = utf16.index(from16, offsetBy: range.length, limitedBy: utf16.endIndex) else return nil 
 guard let from = String.Index(from16, within: self) else return nil 
 guard let to = String.Index(to16, within: self) else return nil 
 return from ..< to
 

it start crash in

range.upperBound.samePosition(in: utf16)

error

Thread 1: EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)

I expect good running

image: [1]: https://i.stack.imgur.com/bfbbf.png

ios swift xcode swift5

share|improve this question

edited Mar 28 at 23:51

Bhaumik

91311 gold badge66 silver badges1717 bronze badges

asked Mar 28 at 3:08

PengZishangPengZishang

122 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Where does utf16 come from?
  
  – El Tomato
  Mar 28 at 3:12
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of How to convert Range<String.Index> to NSRange?
  
  – El Tomato
  Mar 28 at 3:12
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I use this code in extension of String, so utf16 possible is self.utf16, I did see there answer,it run good before Xcode 10.2, but After upgrade to Xcode Version 10.2 (10E125), progress Fatal error
  
  – PengZishang
  Mar 28 at 3:28
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  But you don’t need any of your code, because string conversion between range and NSRange is now built in
  
  – matt
  Mar 28 at 3:38
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  thanks a lot ,conversion between range and NSRange already built in after swift4
  
  – PengZishang
  Mar 28 at 4:26
  

  
  
  
  

add a comment | 

0

1

After upgrade to Xcode Version 10.2 (10E125),
progress Fatal error at range.upperBound.samePosition(in: utf16)

extension String 

 //Range => NSRange
 func nsRange(from range: Range<String.Index>) -> NSRange 
 guard let to = range.upperBound.samePosition(in: utf16) else 
 return NSMakeRange(0, 0)
 

 guard let from = range.lowerBound.samePosition(in: utf16) else 
 return NSMakeRange(0, 0)
 

 return NSMakeRange(utf16.distance(from: utf16.startIndex, to: from), utf16.distance(from: from, to: to))
 

 //NSRange =>Range
 func range(from range: NSRange) -> Range<String.Index>? 
 guard let from16 = utf16.index(utf16.startIndex, offsetBy: range.location, limitedBy: utf16.endIndex) else return nil 
 guard let to16 = utf16.index(from16, offsetBy: range.length, limitedBy: utf16.endIndex) else return nil 
 guard let from = String.Index(from16, within: self) else return nil 
 guard let to = String.Index(to16, within: self) else return nil 
 return from ..< to
 

it start crash in

range.upperBound.samePosition(in: utf16)

error

Thread 1: EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)

I expect good running

image: [1]: https://i.stack.imgur.com/bfbbf.png

ios swift xcode swift5

share|improve this question

edited Mar 28 at 23:51

Bhaumik

91311 gold badge66 silver badges1717 bronze badges

asked Mar 28 at 3:08

PengZishangPengZishang

122 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Where does utf16 come from?
  
  – El Tomato
  Mar 28 at 3:12
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of How to convert Range<String.Index> to NSRange?
  
  – El Tomato
  Mar 28 at 3:12
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I use this code in extension of String, so utf16 possible is self.utf16, I did see there answer,it run good before Xcode 10.2, but After upgrade to Xcode Version 10.2 (10E125), progress Fatal error
  
  – PengZishang
  Mar 28 at 3:28
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  But you don’t need any of your code, because string conversion between range and NSRange is now built in
  
  – matt
  Mar 28 at 3:38
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  thanks a lot ,conversion between range and NSRange already built in after swift4
  
  – PengZishang
  Mar 28 at 4:26
  

  
  
  
  

add a comment | 

After upgrade to Xcode Version 10.2 (10E125),
progress Fatal error at range.upperBound.samePosition(in: utf16)

extension String 

 //Range => NSRange
 func nsRange(from range: Range<String.Index>) -> NSRange 
 guard let to = range.upperBound.samePosition(in: utf16) else 
 return NSMakeRange(0, 0)
 

 guard let from = range.lowerBound.samePosition(in: utf16) else 
 return NSMakeRange(0, 0)
 

 return NSMakeRange(utf16.distance(from: utf16.startIndex, to: from), utf16.distance(from: from, to: to))
 

 //NSRange =>Range
 func range(from range: NSRange) -> Range<String.Index>? 
 guard let from16 = utf16.index(utf16.startIndex, offsetBy: range.location, limitedBy: utf16.endIndex) else return nil 
 guard let to16 = utf16.index(from16, offsetBy: range.length, limitedBy: utf16.endIndex) else return nil 
 guard let from = String.Index(from16, within: self) else return nil 
 guard let to = String.Index(to16, within: self) else return nil 
 return from ..< to
 

it start crash in

range.upperBound.samePosition(in: utf16)

error

Thread 1: EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)

I expect good running

image: [1]: https://i.stack.imgur.com/bfbbf.png

ios swift xcode swift5

share|improve this question

edited Mar 28 at 23:51

Bhaumik

91311 gold badge66 silver badges1717 bronze badges

asked Mar 28 at 3:08

PengZishangPengZishang

122 bronze badges

extension String 

 //Range => NSRange
 func nsRange(from range: Range<String.Index>) -> NSRange 
 guard let to = range.upperBound.samePosition(in: utf16) else 
 return NSMakeRange(0, 0)
 

 guard let from = range.lowerBound.samePosition(in: utf16) else 
 return NSMakeRange(0, 0)
 

 return NSMakeRange(utf16.distance(from: utf16.startIndex, to: from), utf16.distance(from: from, to: to))
 

 //NSRange =>Range
 func range(from range: NSRange) -> Range<String.Index>? 
 guard let from16 = utf16.index(utf16.startIndex, offsetBy: range.location, limitedBy: utf16.endIndex) else return nil 
 guard let to16 = utf16.index(from16, offsetBy: range.length, limitedBy: utf16.endIndex) else return nil 
 guard let from = String.Index(from16, within: self) else return nil 
 guard let to = String.Index(to16, within: self) else return nil 
 return from ..< to
 

share|improve this question

edited Mar 28 at 23:51

Bhaumik

91311 gold badge66 silver badges1717 bronze badges

asked Mar 28 at 3:08

PengZishangPengZishang

122 bronze badges

share|improve this question

edited Mar 28 at 23:51

Bhaumik

91311 gold badge66 silver badges1717 bronze badges

asked Mar 28 at 3:08

PengZishangPengZishang

122 bronze badges

edited Mar 28 at 23:51

Bhaumik

91311 gold badge66 silver badges1717 bronze badges

edited Mar 28 at 23:51

Bhaumik

91311 gold badge66 silver badges1717 bronze badges

asked Mar 28 at 3:08

PengZishangPengZishang

122 bronze badges

asked Mar 28 at 3:08

PengZishangPengZishang

122 bronze badges