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gccgo: bogus index out of bounds #11522

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dvyukov opened this issue Jul 2, 2015 · 2 comments
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gccgo: bogus index out of bounds #11522

dvyukov opened this issue Jul 2, 2015 · 2 comments
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@dvyukov
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dvyukov commented Jul 2, 2015

gccgo rejects to compile the following program:

package a
var a = ""[:]
go.go:2:11: error: string index out of bounds

gcc version 6.0.0 2015070 (experimental) (GCC)
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dvyukov commented Jul 2, 2015

@paranoiacblack

@dvyukov dvyukov mentioned this issue Jul 2, 2015
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@ianlancetaylor ianlancetaylor added this to the Gccgo milestone Jul 10, 2015
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CL https://golang.org/cl/13030 mentions this issue.

timshen91 pushed a commit to timshen91/gcc that referenced this issue Aug 26, 2015
compiler: Allow string slices with start index == length.
b10f32f 
    
    Avoid an off-by-one error when checking the start index of a string
    slice by allowing the start index to be the string length instead
    of the string length - 1.
    
    Fixes golang/go#11522.
    
    Reviewed-on: https://go-review.googlesource.com/13030


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227191 138bc75d-0d04-0410-961f-82ee72b054a4
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