Please ignore my last email. I was indeed off by one index. > On Dec 11, 2015, at 2:11 PM, Jens Alfke <[email protected]> wrote: > > >> On Dec 11, 2015, at 10:23 AM, Michael McLaughlin <[email protected] >> <mailto:[email protected]>> wrote: >> >> v2.resize(length); >> for (c = 0;c <= length;c++) >> v2[c].resize(length2); > > You have an off-by-one bug and are writing past the end of the v2 vector. > (The “<=“ should be “<“.) For random reasons depending on how the heap > happens to be laid out at the moment, this will sometimes be benign and > sometimes cause terrible problems. > > PSA: Turning on the Address Sanitizer in Xcode 7 (it’s in the Run and Test > sections of the scheme editor) would probably have caught this at the moment > it occurred. > > —Jens >
-- Michael McLaughlin [email protected]
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