When compiling mpfr-2.3.1 with gcc-4.3, one gets the following warning
(among others):
{{{
lngamma.c: In function 'mpfr_lngamma_aux':
lngamma.c:160: warning: 'B' may be used uninitialized in this function
}}}
However, looking at the code shows that this variable cannot be used
uninitialized:
* a variable Bm is initialized to zero
* if Bm=0, B is initialized using an auxiliary function, and Bm is set to 2
(this code is in a do { ... } while loop, thus is always executed)
--
Summary: wrong warning about potential uninitialized variable
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: zimmerma+gcc at loria dot fr
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=36296
