1 # 2013-07-17 Stefan Teleman <[email protected]>

     2 # 1. DR550 is not normative. It is just a Defect Report.

     3 #

     4 # 2. The overloaded pow(3m) interfaces should not be removed from C++11,

     5 # there is no valid technical reason to do so.

     6 #

     7 # 3. GCC 4.8.1 re-introduces these pow(3m) interfaces in C++11 after

     8 # having removed them in 4.7.3.

     9 --- gcc-4.7.3/libstdc++-v3/include/c_global/cmath	2011-11-14 03:29:26.000000000 -0800

    10 +++ gcc-4.7.3/libstdc++-v3/include/c_global/cmath	2013-07-14 16:45:54.968913460 -0700

    11 @@ -414,9 +414,9 @@

    12    pow(long double __x, long double __y)

    13    { return __builtin_powl(__x, __y); }

    14  

    15 -#ifndef __GXX_EXPERIMENTAL_CXX0X__

    16    // _GLIBCXX_RESOLVE_LIB_DEFECTS

    17    // DR 550. What should the return type of pow(float,int) be?

    18 +  // http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#550

    19    inline double

    20    pow(double __x, int __i)

    21    { return __builtin_powi(__x, __i); }

    22 @@ -429,7 +429,6 @@

    23    pow(long double __x, int __n)

    24    { return __builtin_powil(__x, __n); }

    25  #endif

    26 -#endif

    27  

    28    template<typename _Tp, typename _Up>

    29      inline _GLIBCXX_CONSTEXPR