Merge pull request #455 from ValeevGroup/evaleev/fix/cxx20-build

C++20 build fixes

INSTALL.md

@@ -43,7 +43,7 @@ Both methods are supported. However, for most users we _strongly_ recommend to b
 - [Range-V3](https://github.com/ericniebler/range-v3.git) -- a Ranges library that served as the basis for Ranges component of C++20 and later.
 - [BTAS](http://github.com/ValeevGroup/BTAS), tag 4e8f5233aa7881dccdfcc37ce07128833926d3c2 . If usable BTAS installation is not found, TiledArray will download and compile
   BTAS from source. *This is the recommended way to compile BTAS for all users*.
-- [MADNESS](https://github.com/m-a-d-n-e-s-s/madness), tag 3d0ae2fad1b97e347ca6dd98b9f1b9e74e629f52 .
+- [MADNESS](https://github.com/m-a-d-n-e-s-s/madness), tag 96ac90e8f193ccfaf16f346b4652927d2d362e75 .
   Only the MADworld runtime and BLAS/LAPACK C API component of MADNESS is used by TiledArray.
   If usable MADNESS installation is not found, TiledArray will download and compile
   MADNESS from source. *This is the recommended way to compile MADNESS for all users*.

external/versions.cmake

@@ -11,8 +11,8 @@ set(TA_INSTALL_EIGEN_PREVIOUS_VERSION 3.3.7)
 set(TA_INSTALL_EIGEN_URL_HASH SHA256=b4c198460eba6f28d34894e3a5710998818515104d6e74e5cc331ce31e46e626)
 set(TA_INSTALL_EIGEN_PREVIOUS_URL_HASH MD5=b9e98a200d2455f06db9c661c5610496)
 
-set(TA_TRACKED_MADNESS_TAG 3d0ae2fad1b97e347ca6dd98b9f1b9e74e629f52)
-set(TA_TRACKED_MADNESS_PREVIOUS_TAG 8788aea9758bfe6479cc23d39e6c77b7528009db)
+set(TA_TRACKED_MADNESS_TAG 96ac90e8f193ccfaf16f346b4652927d2d362e75)
+set(TA_TRACKED_MADNESS_PREVIOUS_TAG 3d0ae2fad1b97e347ca6dd98b9f1b9e74e629f52)
 set(TA_TRACKED_MADNESS_VERSION 0.10.1)
 set(TA_TRACKED_MADNESS_PREVIOUS_VERSION 0.10.1)
 

src/TiledArray/dist_array.h

@@ -634,7 +634,7 @@ class DistArray : public madness::archive::ParallelSerializableObject {
   /// Checks if this is a unique handle to the implementation object
 
   /// \return true if this is a unique handle to the implementation object
-  bool is_unique() const { return pimpl_.unique(); }
+  bool is_unique() const { return pimpl_.use_count() == 1; }
 
   /// Wait for lazy tile cleanup
 
@@ -1952,7 +1952,7 @@ DistArray<T, P> replicated(const DistArray<T, P>& a) {
 
   // Put the replicator pointer in the deferred cleanup object so it will
   // be deleted at the end of the next fence.
-  TA_ASSERT(replicator.unique());  // Required for deferred_cleanup
+  TA_ASSERT(replicator.use_count() == 1);  // Required for deferred_cleanup
   madness::detail::deferred_cleanup(world, replicator);
 
   return result;