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authorUlrich Drepper <drepper@redhat.com>1997-04-30 15:51:34 +0000
committerUlrich Drepper <drepper@redhat.com>1997-04-30 15:51:34 +0000
commit779ae82ecdf88b7ed7c1f00d3ed3a639671c3c8d (patch)
tree287afe5ef732d76109129a142c5840cc42a2b34a /sysdeps/libm-ieee754/s_csin.c
parentUpdate. (diff)
downloadglibc-cvs/libc-970527.tar.gz
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glibc-cvs/libc-970527.zip
1997-04-30 17:35 Ulrich Drepper <drepper@cygnus.com> * math/libm-test.c: Implement test for exceptions. Partly due to Andreas Jaeger. (csin_test): New function. * sysdeps/libm-i387/s_cexp.S: Raise correct exceptions. * sysdeps/libm-i387/s_cexpf.S: Likewise. * sysdeps/libm-i387/s_cexpl.S: Likewise. * sysdeps/libm-ieee754/s_ccos.c: Likewise. * sysdeps/libm-ieee754/s_ccosf.c: Likewise. * sysdeps/libm-ieee754/s_ccosl.c: Likewise. * sysdeps/libm-ieee754/s_ccosh.c: Likewise. * sysdeps/libm-ieee754/s_ccoshf.c: Likewise. * sysdeps/libm-ieee754/s_ccoshl.c: Likewise. * sysdeps/libm-ieee754/s_cexp.c: Likewise. * sysdeps/libm-ieee754/s_cexpf.c: Likewise. * sysdeps/libm-ieee754/s_cexpl.c: Likewise. * sysdeps/libm-ieee754/s_csinh.c: Likewise. * sysdeps/libm-ieee754/s_csinhf.c: Likewise. * sysdeps/libm-ieee754/s_csinhl.c: Likewise. * sysdeps/libm-ieee754/s_ctanh.c: Likewise. * sysdeps/libm-ieee754/s_ctanhf.c: Likewise. * sysdeps/libm-ieee754/s_ctanhl.c: Likewise. * sysdeps/libm-ieee754/s_ccosh.c: Correct computation. * sysdeps/libm-ieee754/s_ccoshf.c: Likewise. * sysdeps/libm-ieee754/s_ccoshl.c: Likewise. * sysdeps/libm-ieee754/s_csinh.c: Likewise. * sysdeps/libm-ieee754/s_csinhf.c: Likewise. * sysdeps/libm-ieee754/s_csinhl.c: Likewise. * sysdeps/libm-ieee754/s_csin.c: Rewrite. * sysdeps/libm-ieee754/s_csinf.c: Likewise. * sysdeps/libm-ieee754/s_csinl.c: Likewise. * stdlib/random_r.c (__srandom_r): Don't use seed 0. Use 1 in this case. * sysdeps/i386/dl-machine.h (elf_machine_load_address): Use notation for local label. * time/strftime.c (add): Respect `0' padding flag. Reported by Richard Stallman <rms@gnu.ai.mit.edu>. 1997-04-30 15:46 Ulrich Drepper <drepper@cygnus.com> * Makeconfig (start-installed-name): Define here, not in csu/Makefile. Use in +link macro. * csu/Makefile (distribute): Add abi-note.S and abi-tag.h. (start-installed-name): Don't define here. When ELF generate file named by start-installed-name from start.o and abi-note.o. * csu/abi-note.S: New file. * sysdeps/stub/abi-tag.h: New file. * sysdpes/unix/sysv/linux/abi-tag.h: New file. Patches by Roland McGrath <roland@gnu.ai.mit.edu>. 1997-04-30 01:32 Ulrich Drepper <drepper@cygnus.com> * manual/stdio.texi: Use @vtable where possible. Add TeX version of @multitable since texi2dvi cannot handle them correct in the moment. * po/de.po: Update. 1997-04-29 21:06 Ulrich Drepper <drepper@cygnus.com> * Makeconfig: Don't set cross-compiling based on $(BUILD_CC) != $(CC). * config.make.in: Set cross-compiling from configure result. * configure.in: Emit definition of `cross_compiling'. Patches by Marcus G. Daniels <marcus@cathcart.sysc.pdx.edu>. 1997-04-27 21:50 Philip Blundell <pjb27@cam.ac.uk> * sysdeps/unix/sysv/linux/net/route.h (struct in6_rtmsg): Use correct `int' sizes for struct members. 1997-04-29 19:14 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-i387/e_powf.S Generate invalid exception correctly. * sysdeps/libm-i387/e_pow.S: Likewise. * sysdeps/libm-i387/e_powl.S: Likewise. 1997-04-23 10:08 Andreas Jaeger <aj@arthur.rhein-neckar.de> * math/fenv.h: Correct typos. 1997-04-28 10:04 Richard Henderson <rth@tamu.edu> * sysdeps/unix/sysv/linux/alpha/clone.S: Save the function argument in t0 rather than a4 to avoid it being clobbered. 1997-04-27 23:52 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/summary.awk: Recognize @defmumblex. * manual/signal.texi (Miscellaneous Signals): Use @deftypevrx for second description header. 1997-04-27 23:29 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/arith.texi (Floating-Point Classes): Don't indent text, makeinfo doesn't like that. 1997-04-27 20:52 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * malloc/obstack.h (obstack_specify_allocation_with_arg, obstack_chunkfun, obstack_freefun): Fix casts. 1997-04-27 18:21 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/xtract-typefun.awk: Allow names with only one character. 1997-04-26 14:16 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/netinet/ip_fw.h: Use <netinet/ip_icmp.h> not <netinet/icmp.h>. Reported by Michael Deutschmann <ldeutsch@mail.netshop.net>. 1997-04-25 12:31 Ulrich Drepper <drepper@cygnus.com> * csu/Makefile ($(objpfx)initfini.s): Add CPPFLAGS, CFLAGS and -g0 to command line of compiler. Patch by Marcus G. Daniels <marcus@sysc.pdx.edu>. * sysdeps/generic/sigset.h (__sigandset, __sigorset): Fix typos. Patch by Marcus G. Daniels <marcus@sysc.pdx.edu>. * signal/signal.h (_sys_siglist, sys_siglist): Use _NSIG, not NSIG in declaration. Patch by Michael Widenius <monty@tcx.se>. * time/strptime.c (strptime_internal): Fix %I format specifier being off by one. Patch by Mark Kettenis <kettenis@phys.uva.nl>. 1997-04-24 12:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * stdlib/lcong48_r.c: Include <limits.h>. * stdlib/seed48_r.c: Likewise. * stdio-common/printf_size.c (printf_size): Correct type of `units' and make robust against future changes. 1997-04-23 18:58 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/libm-ieee754/s_cproj.c: Use isfinite instead of finite. * sysdeps/libm-ieee754/s_cprojl.c: Likewise. * sysdeps/libm-ieee754/s_cprojf.c: Likewise. 1997-04-23 18:53 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/arith.texi, manual/math.texi: Use @defmumblex for additional description headers. * manual/xtract-typefun.awk: Recognize them. 1997-04-22 15:58 Andreas Jaeger <aj@arthur.rhein-neckar.de> * stdio-common/printf_size.c (printf_size): Correct size of array units.
Diffstat (limited to 'sysdeps/libm-ieee754/s_csin.c')
-rw-r--r--sysdeps/libm-ieee754/s_csin.c104
1 files changed, 84 insertions, 20 deletions
diff --git a/sysdeps/libm-ieee754/s_csin.c b/sysdeps/libm-ieee754/s_csin.c
index 4639bcaaa6..6627387d42 100644
--- a/sysdeps/libm-ieee754/s_csin.c
+++ b/sysdeps/libm-ieee754/s_csin.c
@@ -19,46 +19,110 @@
Boston, MA 02111-1307, USA. */
#include <complex.h>
+#include <fenv.h>
#include <math.h>
+#include "math_private.h"
+
__complex__ double
__csin (__complex__ double x)
{
- __complex__ double res;
+ __complex__ double retval;
+ int negate = signbit (__real__ x);
+ int rcls = fpclassify (__real__ x);
+ int icls = fpclassify (__imag__ x);
+
+ __real__ x = fabs (__real__ x);
- if (!isfinite (__real__ x) || isnan (__imag__ x))
+ if (icls >= FP_ZERO)
{
- if (__real__ x == 0.0 || __imag__ x == 0.0)
- {
- __real__ res = __nan ("");
- __imag__ res = 0.0;
- }
- else if (__isinf (__imag__ x))
+ /* Imaginary part is finite. */
+ if (rcls >= FP_ZERO)
{
- __real__ res = __nan ("");
- __imag__ res = __imag__ x;
+ /* Real part is finite. */
+ double sinh_val = __ieee754_sinh (__imag__ x);
+ double cosh_val = __ieee754_cosh (__imag__ x);
+ double sinix, cosix;
+
+ __sincos (__real__ x, &sinix, &cosix);
+
+ __real__ retval = cosh_val * sinix;
+ __imag__ retval = sinh_val * cosix;
+
+ if (negate)
+ __real__ retval = -__real__ retval;
}
else
{
- __real__ res = __nan ("");
- __imag__ res = __nan ("");
+ if (icls == FP_ZERO)
+ {
+ /* Imaginary part is 0.0. */
+ __real__ retval = __nan ("");
+ __imag__ retval = __imag__ x;
+
+#ifdef FE_INVALID
+ if (rcls == FP_INFINITE)
+ feraiseexcept (FE_INVALID);
+#endif
+ }
+ else
+ {
+ __real__ retval = __nan ("");
+ __imag__ retval = __nan ("");
+
+#ifdef FE_INVALID
+ feraiseexcept (FE_INVALID);
+#endif
+ }
}
}
- else
+ else if (icls == FP_INFINITE)
{
- __complex__ double y;
+ /* Imaginary part is infinite. */
+ if (rcls == FP_ZERO)
+ {
+ /* Real part is 0.0. */
+ __real__ retval = __copysign (0.0, negate ? -1.0 : 1.0);
+ __imag__ retval = __imag__ x;
+ }
+ else if (rcls > FP_ZERO)
+ {
+ /* Real part is finite. */
+ double sinix, cosix;
+
+ __sincos (__real__ x, &sinix, &cosix);
- __real__ y = -__imag__ x;
- __imag__ y = __real__ x;
+ __real__ retval = __copysign (HUGE_VAL, sinix);
+ __imag__ retval = __copysign (HUGE_VAL, cosix);
- y = __csinh (y);
+ if (negate)
+ __real__ retval = -__real__ retval;
+ if (signbit (__imag__ x))
+ __imag__ retval = -__imag__ retval;
+ }
+ else
+ {
+ /* The addition raises the invalid exception. */
+ __real__ retval = __nan ("");
+ __imag__ retval = HUGE_VAL;
- __real__ res = __imag__ y;
- __imag__ res = -__real__ y;
+#ifdef FE_INVALID
+ if (rcls == FP_INFINITE)
+ feraiseexcept (FE_INVALID);
+#endif
+ }
+ }
+ else
+ {
+ if (rcls == FP_ZERO)
+ __real__ retval = __copysign (0.0, negate ? -1.0 : 1.0);
+ else
+ __real__ retval = __nan ("");
+ __imag__ retval = __nan ("");
}
- return res;
+ return retval;
}
weak_alias (__csin, csin)
#ifdef NO_LONG_DOUBLE