The attached simple test case crashes when compiled with g++ but not with gcc.
Version 4.4.3 of g++ emits the "'<anonymous>' may be used uninitialized"
warning.
The program works fine when one unreachable line is removed from the program.
It seems that the compiler generates incorrect code when the unreachable line
is present. The program also works if optimization is enabled, presumably
because it optimizes away the unreachable line.
g++ -Wall -g -o gccmultidimarray gccmultidimarray.c
--
Summary: questionable "'<anonymous>' may be used uninitialized"
warning and code failure
Product: gcc
Version: 4.4.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bgreen at nas dot nasa dot gov
GCC target triplet: x86_64-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44851
