Work around:
do {
var str = "abcdefg"
var str1 = str + "hijklmn"
* let startIndex =
str1.rangeOfComposedCharacterSequenceAtIndex(str.startIndex).startIndex*
* var range = startIndex..<str1.endIndex*
range.startIndex = range.startIndex.advancedBy(10)
}
If you encounter this issue, you need to
use rangeOfComposedCharacterSequenceAtIndex to update to hidden endIndex.
do {
var str = "abcdefg"
var range = str.startIndex..<str.endIndex // 0..<7
str += "hijklmn"
// range.endIndex = str.endIndex // 0..<14
*range = str.**startIndex..<str.endIndex*
let index = range.startIndex.advancedBy(10)
}
Reassign the whole range instead of just set the endIndex.
Zhaoxin
On Wed, May 18, 2016 at 10:14 AM, zh ao <[email protected]> wrote:
> I just make a clearer example.
>
> do {
>
> var str = "abcdefg"
>
> var str1 = str + "hijklmn"
>
> var range = str.startIndex..<str1.endIndex
>
> range.startIndex = range.startIndex.advancedBy(10)
>
> //fatal error: cannot increment endIndex
>
> }
>
>
> It seams that range.startIndex internally contains a fault
> endIndex(str.endIndex, it should be its own endIndex, range.endIndex),
> which leads the issue.
>
>
> Zhaoxin
>
> On Wed, May 18, 2016 at 12:02 AM, Dmitri Gribenko <[email protected]>
> wrote:
>
>> On Tue, May 17, 2016 at 5:46 AM, zh ao via swift-users
>> <[email protected]> wrote:
>> > It seams that I encountered bugs in function advancedBy().
>> >
>> > do {
>> > var str = "abcdefg"
>> > var range = str.startIndex..<str.endIndex // 0..<7
>> > str += "hijklmn"
>> > range.endIndex = str.endIndex // 0..<14
>> > let index = range.startIndex.advancedBy(10)
>> > //fatal error: cannot increment endIndex
>> > }
>>
>> Hi,
>>
>> Thank you for the report. To me, this issue looks the same as
>> https://bugs.swift.org/browse/SR-1487.
>>
>> Dmitri
>>
>> --
>> main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
>> (j){printf("%d\n",i);}}} /*Dmitri Gribenko <[email protected]>*/
>>
>
>
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