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Add missing tan(), tanh() and log10() for std::complex.

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These are part of the C++ standard, I don't know how they went missing
in our version.
http://www.cplusplus.com/reference/std/complex/

They are needed to build MathGL library, and likely other stuff.
This commit is contained in:
Adrien Destugues - PulkoMandy 2012-10-27 15:42:44 +02:00 committed by Oliver Tappe
parent 87efb055fb
commit 855732f929
1 changed files with 17 additions and 1 deletions
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18
legacy/gcc/libstdc++/std/complext.h
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@ -311,7 +311,7 @@ operator != (_FLT x, const complex<_FLT>& y)
}
// Some targets don't provide a prototype for hypot when -ansi.
extern "C" double hypot (double, double) __attribute__ ((const));
//extern "C" double hypot (double, double) __attribute__ ((const));
template <class _FLT> inline _FLT
abs (const complex<_FLT>& x) __attribute__ ((const));
@ -387,6 +387,22 @@ template <class _FLT> complex<_FLT>
template <class _FLT> complex<_FLT>
sqrt (const complex<_FLT>&) __attribute__ ((const));
template <class _FLT> inline complex<_FLT>
tan (const complex<_FLT>& x)
{
return sin (x) / cos (x);
}
template <class _FLT> inline complex<_FLT>
tanh (const complex<_FLT>& x)
{
return sinh (x) / cosh (x);
}
template <class _FLT> inline complex<_FLT>
log10 (const complex<_FLT>& x)
{
return log (x) / log (10.0);
}
template <class _FLT> istream& operator >> (istream&, complex<_FLT>&);
template <class _FLT> ostream& operator << (ostream&, const complex<_FLT>&);
} // extern "C++"