gcc/testsuite/g++.dg/compat/decimal/decimal-dummy.h

namespace std {
namespace decimal {

  class decimal32
  {
  public:
    typedef float __dec32 __attribute__((mode(SD)));
    decimal32 () : __val(0.e-101DF) {}
    decimal32 (__dec32 x) : __val(x) {}
    __dec32 __val;
  };

  class decimal64
  {
  public:
    typedef float __dec64 __attribute__((mode(DD)));
    decimal64 () : __val(0.e-398dd) {}
    decimal64 (__dec64 x) : __val(x) {}
    __dec64 __val;
  };

  class decimal128
  {
  public:
    typedef float __dec128 __attribute__((mode(TD)));
    decimal128 () : __val(0.e-6176DL) {}
    decimal128 (__dec128 x) : __val(x) {}
    __dec128 __val;
  };

  inline decimal32 operator+ (decimal32 lhs, decimal32 rhs)
  {
    decimal32 tmp;
    tmp.__val = lhs.__val + rhs.__val;
    return tmp;
  }

  inline decimal64 operator+ (decimal64 lhs, decimal64 rhs)
  {
    decimal64 tmp;
    tmp.__val = lhs.__val + rhs.__val;
    return tmp;
  }

  inline decimal128 operator+ (decimal128 lhs, decimal128 rhs)
  {
    decimal128 tmp;
    tmp.__val = lhs.__val + rhs.__val;
    return tmp;
  }

  inline bool operator!= (decimal32 lhs, decimal32 rhs)
  {
    return lhs.__val != rhs.__val;
  }

  inline bool operator!= (decimal64 lhs, decimal64 rhs)
  {
    return lhs.__val != rhs.__val;
  }

  inline bool operator!= (decimal128 lhs, decimal128 rhs)
  {
    return lhs.__val != rhs.__val;
  }
}
}