[CI SKIP] Local constants for diagnostic purposes

example/exercise_threading_log_agm.cpp

@@ -51,7 +51,6 @@
 #include <thread>
 #include <vector>
 
-#include <boost/math/constants/constants.hpp>
 #include <boost/math/special_functions/prime.hpp>
 
 #define BOOST_MULTIPRECISION_EXERCISE_THREADING_BACKEND_CPP_DEC_FLOAT       101
@@ -220,6 +219,42 @@ const std::vector<std::uint32_t>& primes()
   return my_primes;
 }
 
+template<typename StringConstructableFloatType>
+const StringConstructableFloatType& pi()
+{
+  static const StringConstructableFloatType my_pi
+  (
+    "3."
+    "1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679"
+    "8214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196"
+    "4428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273"
+    "7245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094"
+    "3305727036575959195309218611738193261179310511854807446237996274956735188575272489122793818301194912"
+    "9833673362440656643086021394946395224737190702179860943702770539217176293176752384674818467669405132"
+    "0006"
+  );
+
+  return my_pi;
+}
+
+template<typename StringConstructableFloatType>
+const StringConstructableFloatType& ln_two()
+{
+  static const StringConstructableFloatType my_ln_two
+  (
+    "0."
+    "6931471805599453094172321214581765680755001343602552541206800094933936219696947156058633269964186875"
+    "4200148102057068573368552023575813055703267075163507596193072757082837143519030703862389167347112335"
+    "0115364497955239120475172681574932065155524734139525882950453007095326366642654104239157814952043740"
+    "4303855008019441706416715186447128399681717845469570262716310645461502572074024816377733896385506952"
+    "6066834113727387372292895649354702576265209885969320196505855476470330679365443254763274495125040606"
+    "9438147104689946506220167720424524529612687946546193165174681392672504103802546259656869144192871608"
+    "2938"
+  );
+
+  return my_ln_two;
+}
+
 } // namespace detail
 
 template<typename FloatingPointType>
@@ -290,8 +325,8 @@ FloatingPointType log(const FloatingPointType& x)
 
   // Retrieve the value of pi, divide by (2 * a) and subtract (m * ln2).
   const FloatingPointType result =
-       boost::math::constants::pi<FloatingPointType>() / (ak * 2)
-    - (boost::math::constants::ln_two<FloatingPointType>() * m);
+       detail::pi<FloatingPointType>() / (ak * 2)
+    - (detail::ln_two<FloatingPointType>() * m);
 
   return ((b_negate == true) ? -result : result);
 }