7 Mar
2012
7 Mar
'12
9:14 p.m.
On Wed March 7 2012 09:41:23 Timothy Pearson wrote:
Let's take a simple example, qWarning. This becomes _Z8qWarningPKcz in libqt-mt.so.3.3.8 (nm -D /usr/lib/libqt-mt.so | grep qWarning), and _Z8qWarningPKcz in /usr/lib/libQtCore.so (nm -D /usr/lib/libQtCore.so | grep qWarning). If my program references Z8qWarningPKcz, which library will the symbol resolver choose at runtime? They are not binary compatible with each other, and when the symbol resolver chooses the wrong one at runtime (which it will do quite often) the entire program will crash.
Could the problem you describe be addressed more easily with C++ namespaces?
--Mike Bird