glibc/sysdeps/ieee754
Joseph Myers 09220e6634 Avoid uninitialized warnings in Bessel functions.
math/Makefile currently has:

  # The fdlibm code generates a lot of these warnings but is otherwise clean.
  override CFLAGS += -Wno-uninitialized

This is of course undesirable; warnings should be disabled as narrowly
as possible.  To remove this override, we need to fix files that
generate such warnings, or put warning-disabling pragmas in them.
This patch does so for Bessel function implementations, one of the
cases that have the warnings if the override is removed.  The warnings
arise because functions set pointer variables p and q only for certain
values of the function argument, then use them unconditionally.  As
the static functions in question only get called for arguments that
satisfy the last condition in the if/else chain, the natural fix is to
change the last "else if" to just "else", which this patch does.  (The
ldbl-128 / ldbl-128ibm implementation of these functions is
substantially different and looks like it already does use "else" in
the last case in the nearest corresponding code.)

Tested for x86_64 and x86.

	* sysdeps/ieee754/dbl-64/e_j0.c (pzero): Change last case for
	setting p and q from "else if" to "else".
	(qzero): Likewise.
	* sysdeps/ieee754/dbl-64/e_j1.c (pone): Likewise.
	(qone): Likewise.
	* sysdeps/ieee754/flt-32/e_j0f.c (pzerof): Likewise.
	(qzerof): Likewise.
	* sysdeps/ieee754/flt-32/e_j1f.c (ponef): Likewise.
	(qonef): Likewise.
	* sysdeps/ieee754/ldbl-96/e_j0l.c (pzero): Likewise.
	(qzero): Likewise.
	* sysdeps/ieee754/ldbl-96/e_j1l.c (pone): Likewise.
	(qone): Likewise.
2015-02-26 21:49:19 +00:00
..
bits Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
dbl-64 Avoid uninitialized warnings in Bessel functions. 2015-02-26 21:49:19 +00:00
flt-32 Avoid uninitialized warnings in Bessel functions. 2015-02-26 21:49:19 +00:00
ldbl-64-128 Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
ldbl-96 Avoid uninitialized warnings in Bessel functions. 2015-02-26 21:49:19 +00:00
ldbl-128 Fix ldbl-128/ldbl-128ibm acosl inaccuracy (bug 18038, bug 18039). 2015-02-26 21:06:34 +00:00
ldbl-128ibm Fix ldbl-128/ldbl-128ibm acosl inaccuracy (bug 18038, bug 18039). 2015-02-26 21:06:34 +00:00
ldbl-opt Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
ieee754.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
k_standard.c Split __kernel_standard* functions (fixes bug 17724). 2014-12-22 18:45:50 +00:00
k_standardf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
k_standardl.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Makefile
s_lib_version.c Remove trailing whitespace. 2013-06-05 20:44:03 +00:00
s_matherr.c Use <> for math.h and math_private.h everywhere. 2012-03-09 16:09:10 -08:00
s_signgam.c Use <> for math.h and math_private.h everywhere. 2012-03-09 16:09:10 -08:00
support.c Fix leading whitespaces. 2013-06-06 20:36:07 +02:00