restructure includes and headers

lib/3rdparty/half_precision_floating_point.hpp

@@ -0,0 +1,100 @@
+//---------------------------------------------------------------------------//
+
+#ifndef HALF_PRECISION_FLOATING_POINT
+#define HALF_PRECISION_FLOATING_POINT
+
+#include <vector>
+#include <bitset>
+#include "endian.hpp"
+
+//---------------------------------------------------------------------------//
+
+class half_precision_floating_point
+{
+
+private:
+
+  // size of half precision floating point number in bits
+  int size_ = 16;
+
+  // construction of the number (binary16) according to IEEE 754-2008 standard
+  std::bitset<1>  sign_;
+  std::bitset<5>  expo_;
+  std::bitset<10> frac_;
+
+  // endianness of machine/architecture
+  bool little_endian_;
+
+  // number as single-precision floating point number
+  float num_;
+
+  // array of bytes representing the number
+  std::vector<uint8_t> numbytes_;
+
+public:
+
+  // constructors
+  half_precision_floating_point(std::vector<uint8_t> numbytes) : 
+    numbytes_(numbytes)
+  {
+    assert( numbytes_.size() == 2 );
+    endian endi;
+    little_endian_ = endi.little_endian();
+    assert( little_endian_ && "just don't work on big endian machines!" );
+  }
+
+  half_precision_floating_point(float num) :
+    num_(num)
+  {
+
+  }
+
+  // destructor
+  ~half_precision_floating_point()
+  {
+
+  }
+
+  // assignment operator
+  half_precision_floating_point& operator=(const half_precision_floating_point& other)
+  {
+    if ( this != &other )
+    {
+      size_ = other.size_;
+      sign_ = other.sign_;
+      expo_ = other.expo_;
+      frac_ = other.frac_;
+      little_endian_ = other.little_endian_;
+      num_ = other.num_;
+      numbytes_ = other.numbytes_;
+    }
+
+    return *this;
+  }
+
+
+  // convert byte pattern to number
+  void convert_to_float()
+  {
+    // declare a single precision floating point number
+  //  float myfloat = 0.0;
+
+    if ( little_endian_ )
+    {
+    
+    }
+
+  } 
+
+  // convert floating point number to bytes
+  void convert_to_byte()
+  {
+
+  }
+
+};
+
+#endif
+
+//---------------------------------------------------------------------------//
+