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| author | Joseph Myers <joseph@codesourcery.com> | 2015-05-21 23:05:45 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-05-21 23:05:45 +0000 |
| commit | 89f3b6e18c6e7833438789746fcfc2e7189f7cac (patch) | |
| tree | 285370ecb7b84c7ad70b289779c1dd141e549a8d /io/lseek.c | |
| parent | 9d12d7652b830635528639ece2206ecf5bb9ffbf (diff) | |
| download | glibc-89f3b6e18c6e7833438789746fcfc2e7189f7cac.zip glibc-89f3b6e18c6e7833438789746fcfc2e7189f7cac.tar.gz glibc-89f3b6e18c6e7833438789746fcfc2e7189f7cac.tar.bz2 | |
Fix sysdeps/ieee754/dbl-64/mpa.c for -Wuninitialized.
If you remove the "override CFLAGS += -Wno-uninitialized" in
math/Makefile, one of the errors you get is:
../sysdeps/ieee754/dbl-64/mpa.c: In function '__mp_dbl.part.0':
../sysdeps/ieee754/dbl-64/mpa.c:183:5: error: 'c' may be used uninitialized in this function [-Werror=maybe-uninitialized]
c *= X[0];
The problem is that the p < 5 case initializes c if p is 1, 2, 3 or 4
but not otherwise, and in fact p is positive for all calls to this
function so the uninitialized case can't actually occur. This patch
replaces the "if (p == 4)" last case with a comment so the compiler
can see that all paths do initialize c.
Tested for x86_64.
* sysdeps/ieee754/dbl-64/mpa.c (norm): Remove if condition on
(p == 4) case.
Diffstat (limited to 'io/lseek.c')
0 files changed, 0 insertions, 0 deletions