Like PR c/43981, but still happening with 4.6.0 20100513 (Last Changed Rev:
159356
), which is why I copied and editted the title.
In case a const variable is used for array sizing it is not considered to be
read whereas a non-const variable would be considered to be read. It does NOT
happen when using gcc on a .c file, but it happens when using g++ on a .cpp
file, as such component c++.
See the attached test case which shows that only the const variables are
affected by this.
--
Summary: [4.6 Regression] -Wunused-but-set-variable does not
consider array sizing use of a const variable
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rubidium at openttd dot org
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44108
