[PROTON-1225] c++: taking address of element 0 of an empty string or vector

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: proton-0.12.2
• Fix Version/s: proton-0.13.0
• Component/s: cpp-binding
• Assignee: Alan Conway
• Reporter: Alan Conway
• Created: 02/Jun/16 18:37
• Updated: 17/Jun/16 13:35
• Resolved: 03/Jun/16 17:48

Description

This bug shows up in a couple places, fixing all. Originally pointed out on the user list:

http://qpid.2158936.n2.nabble.com/Proton-C-0-12-2-C-vector-subscript-out-of-range-in-unit-tests-td7644983.html

The problem is using the idiom &x[0] to get the address of storage in a string or vector without first testing that it is not empty.