diff options
| author | paolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-03-10 09:16:12 +0000 |
|---|---|---|
| committer | paolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-03-10 09:16:12 +0000 |
| commit | d892842736e25525d6013da2f0377f9b6a08ac8d (patch) | |
| tree | 4b71efb5adf002e92b61121c55148848d34fdc3f /libstdc++-v3/include/std/std_complex.h | |
| parent | a9ca39a06a57ccb6ba278bb32578401a64e75aa2 (diff) | |
| download | ppe42-gcc-d892842736e25525d6013da2f0377f9b6a08ac8d.tar.gz ppe42-gcc-d892842736e25525d6013da2f0377f9b6a08ac8d.zip | |
2004-03-10 Paul Kienzle <pkienzle@nist.gov>
Paolo Carlini <pcarlini@suse.de>
PR libstdc++/13450
* include/std/std_complex.h (pow(const complex&, const _Tp&),
pow(const _Tp&, const complex&)): Use cmath pow only when safe.
* testsuite/26_numerics/complex/13450.cc: New.
* testsuite/26_numerics/cmath/overloads.C: Rename to overloads.cc.
* testsuite/26_numerics/complex/pow.C: Rename to pow.cc and fix.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@79227 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libstdc++-v3/include/std/std_complex.h')
| -rw-r--r-- | libstdc++-v3/include/std/std_complex.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/libstdc++-v3/include/std/std_complex.h b/libstdc++-v3/include/std/std_complex.h index 25c657f2701..d997867c588 100644 --- a/libstdc++-v3/include/std/std_complex.h +++ b/libstdc++-v3/include/std/std_complex.h @@ -705,7 +705,7 @@ namespace std complex<_Tp> pow(const complex<_Tp>& __x, const _Tp& __y) { - if (__x.imag() == _Tp()) + if (__x.imag() == _Tp() && __x.real() > _Tp()) return pow(__x.real(), __y); complex<_Tp> __t = log(__x); @@ -723,9 +723,8 @@ namespace std inline complex<_Tp> pow(const _Tp& __x, const complex<_Tp>& __y) { - return __x == _Tp() - ? _Tp() - : std::polar(pow(__x, __y.real()), __y.imag() * log(__x)); + return __x > _Tp() ? polar(pow(__x, __y.real()), __y.imag() * log(__x)) + : pow(complex<_Tp>(__x, _Tp()), __y); } // 26.2.3 complex specializations |
